Release v6.2.7

Make use of PatternMatchUtils ignoreCase option
Closes gh-34801
2026-06-08 17:33:33 +00:00 · 2025-05-15 10:35:00 +02:00 · 2025-05-15 08:18:56 +01:00 · 2025-05-15 01:45:09 +02:00 · 2025-05-14 15:15:50 +01:00 · 2025-05-14 15:03:28 +02:00
1039 changed files with 24128 additions and 8635 deletions
@@ -15,7 +15,7 @@ runs:
  using: composite
  steps:
    - name: Generate Changelog
-      uses: spring-io/github-changelog-generator@185319ad7eaa75b0e8e72e4b6db19c8b2cb8c4c1 #v0.0.11
+      uses: spring-io/github-changelog-generator@86958813a62af8fb223b3fd3b5152035504bcb83 #v0.0.12
      with:
        config-file: .github/actions/create-github-release/changelog-generator.yml
        milestone: ${{ inputs.milestone }}
@@ -31,10 +31,11 @@ runs:
          ${{ inputs.java-early-access == 'true' && format('{0}-ea', inputs.java-version) || inputs.java-version }}
          ${{ inputs.java-toolchain == 'true' && '17' || '' }}
    - name: Set Up Gradle
-      uses: gradle/actions/setup-gradle@d156388eb19639ec20ade50009f3d199ce1e2808 # v4.1.0
+      uses: gradle/actions/setup-gradle@0bdd871935719febd78681f197cd39af5b6e16a6 # v4.2.2
      with:
        cache-read-only: false
        develocity-access-key: ${{ inputs.develocity-access-key }}
+        develocity-token-expiry: 4
    - name: Configure Gradle Properties
      shell: bash
      run: |
@@ -20,7 +20,7 @@ runs:
  using: composite
  steps:
    - name: Set Up JFrog CLI
-      uses: jfrog/setup-jfrog-cli@9fe0f98bd45b19e6e931d457f4e98f8f84461fb5 # v4.4.1
+      uses: jfrog/setup-jfrog-cli@f748a0599171a192a2668afee8d0497f7c1069df # v4.5.6
      env:
        JF_ENV_SPRING: ${{ inputs.jfrog-cli-config-token }}
    - name: Download Release Artifacts
@@ -2,7 +2,7 @@ name: Build and Deploy Snapshot
 on:
  push:
    branches:
-      - main
+      - 6.2.x
 concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
 jobs:
@@ -21,7 +21,7 @@ jobs:
          develocity-access-key: ${{ secrets.DEVELOCITY_ACCESS_KEY }}
          publish: true
      - name: Deploy
-        uses: spring-io/artifactory-deploy-action@26bbe925a75f4f863e1e529e85be2d0093cac116 # v0.0.1
+        uses: spring-io/artifactory-deploy-action@dc1913008c0599f0c4b1fdafb6ff3c502b3565ea # v0.0.2
        with:
          artifact-properties: |
            /**/framework-api-*.zip::zip.name=spring-framework,zip.deployed=false
@@ -9,22 +9,11 @@ jobs:
    runs-on: ubuntu-latest
    timeout-minutes: 60
    steps:
-      - name: Set Up JDK 17
-        uses: actions/setup-java@v4
-        with:
-          distribution: 'liberica'
-          java-version: '17'
-      - name: Check Out
+      - name: Check Out Code
        uses: actions/checkout@v4
-      - name: Validate Gradle Wrapper
-        uses: gradle/actions/wrapper-validation@d156388eb19639ec20ade50009f3d199ce1e2808 # v4.1.0
-      - name: Set Up Gradle
-        uses: gradle/actions/setup-gradle@d156388eb19639ec20ade50009f3d199ce1e2808 # v4.1.0
      - name: Build
-        env:
-          CI: 'true'
-          GRADLE_ENTERPRISE_URL: 'https://ge.spring.io'
-        run: ./gradlew -Dorg.gradle.internal.launcher.welcomeMessageEnabled=false --no-daemon --no-parallel --continue build
+        id: build
+        uses: ./.github/actions/build
      - name: Print JVM Thread Dumps When Cancelled
        if: cancelled()
        uses: ./.github/actions/print-jvm-thread-dumps
@@ -1,7 +1,8 @@
 name: CI
 on:
-  schedule:
-    - cron: '30 9 * * *'
+  push:
+    branches:
+      - 6.2.x
 concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
 jobs:
@@ -1,79 +0,0 @@
-name: Release Milestone
-on:
-  push:
-    tags:
-      - v6.2.0-M[1-9]
-      - v6.2.0-RC[1-9]
-concurrency:
-  group: ${{ github.workflow }}-${{ github.ref }}
-jobs:
-  build-and-stage-release:
-    if: ${{ github.repository == 'spring-projects/spring-framework' }}
-    name: Build and Stage Release
-    runs-on: ubuntu-latest
-    steps:
-      - name: Check Out Code
-        uses: actions/checkout@v4
-      - name: Build and Publish
-        id: build-and-publish
-        uses: ./.github/actions/build
-        with:
-          develocity-access-key: ${{ secrets.GRADLE_ENTERPRISE_SECRET_ACCESS_KEY }}
-          publish: true
-      - name: Stage Release
-        uses: spring-io/artifactory-deploy-action@26bbe925a75f4f863e1e529e85be2d0093cac116 # v0.0.1
-        with:
-          artifact-properties: |
-            /**/framework-api-*.zip::zip.name=spring-framework,zip.deployed=false
-            /**/framework-api-*-docs.zip::zip.type=docs
-            /**/framework-api-*-schema.zip::zip.type=schema
-          build-name: ${{ format('spring-framework-{0}', steps.build-and-publish.outputs.version)}}
-          folder: 'deployment-repository'
-          password: ${{ secrets.ARTIFACTORY_PASSWORD }}
-          repository: 'libs-staging-local'
-          signing-key: ${{ secrets.GPG_PRIVATE_KEY }}
-          signing-passphrase: ${{ secrets.GPG_PASSPHRASE }}
-          uri: 'https://repo.spring.io'
-          username: ${{ secrets.ARTIFACTORY_USERNAME }}
-    outputs:
-      version: ${{ steps.build-and-publish.outputs.version }}
-  verify:
-    name: Verify
-    needs: build-and-stage-release
-    uses: ./.github/workflows/verify.yml
-    with:
-      staging: true
-      version: ${{ needs.build-and-stage-release.outputs.version }}
-    secrets:
-      google-chat-webhook-url: ${{ secrets.GOOGLE_CHAT_WEBHOOK_URL }}
-      repository-password: ${{ secrets.ARTIFACTORY_PASSWORD }}
-      repository-username: ${{ secrets.ARTIFACTORY_USERNAME }}
-      token: ${{ secrets.GH_ACTIONS_REPO_TOKEN }}
-  promote-release:
-    name: Promote Release
-    needs:
-      - build-and-stage-release
-      - verify
-    runs-on: ubuntu-latest
-    steps:
-      - name: Set up JFrog CLI
-        uses: jfrog/setup-jfrog-cli@9fe0f98bd45b19e6e931d457f4e98f8f84461fb5 # v4.4.1
-        env:
-          JF_ENV_SPRING: ${{ secrets.JF_ARTIFACTORY_SPRING }}
-      - name: Promote build
-        run: jfrog rt build-promote ${{ format('spring-framework-{0}', needs.build-and-stage-release.outputs.version)}} ${{ github.run_number }} libs-milestone-local
-  create-github-release:
-    name: Create GitHub Release
-    needs:
-      - build-and-stage-release
-      - promote-release
-    runs-on: ubuntu-latest
-    steps:
-      - name: Check Out Code
-        uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
-      - name: Create GitHub Release
-        uses: ./.github/actions/create-github-release
-        with:
-          milestone: ${{ needs.build-and-stage-release.outputs.version }}
-          pre-release: true
-          token: ${{ secrets.GH_ACTIONS_REPO_TOKEN }}
@@ -20,7 +20,7 @@ jobs:
          develocity-access-key: ${{ secrets.DEVELOCITY_ACCESS_KEY }}
          publish: true
      - name: Stage Release
-        uses: spring-io/artifactory-deploy-action@26bbe925a75f4f863e1e529e85be2d0093cac116 # v0.0.1
+        uses: spring-io/artifactory-deploy-action@dc1913008c0599f0c4b1fdafb6ff3c502b3565ea # v0.0.2
        with:
          artifact-properties: |
            /**/framework-api-*.zip::zip.name=spring-framework,zip.deployed=false
@@ -73,7 +73,7 @@ jobs:
    runs-on: ubuntu-latest
    steps:
      - name: Set up JFrog CLI
-        uses: jfrog/setup-jfrog-cli@9fe0f98bd45b19e6e931d457f4e98f8f84461fb5 # v4.4.1
+        uses: jfrog/setup-jfrog-cli@dff217c085c17666e8849ebdbf29c8fe5e3995e6 # v4.5.2
        env:
          JF_ENV_SPRING: ${{ secrets.JF_ARTIFACTORY_SPRING }}
      - name: Promote build
@@ -12,8 +12,9 @@ permissions:

 jobs:
  update-antora-ui-spring:
-    runs-on: ubuntu-latest
    name: Update on Supported Branches
+    if: ${{ github.repository == 'spring-projects/spring-framework' }}
+    runs-on: ubuntu-latest
    strategy:
      matrix:
        branch: [ '6.1.x' ]
@@ -25,8 +26,9 @@ jobs:
          token: ${{ secrets.GITHUB_TOKEN }}
          antora-file-path: 'framework-docs/antora-playbook.yml'
  update-antora-ui-spring-docs-build:
-    runs-on: ubuntu-latest
    name: Update on docs-build
+    if: ${{ github.repository == 'spring-projects/spring-framework' }}
+    runs-on: ubuntu-latest
    steps:
      - uses: spring-io/spring-doc-actions/update-antora-spring-ui@5a57bcc6a0da2a1474136cf29571b277850432bc
        name: Update
@@ -46,7 +46,7 @@ jobs:
          distribution: 'liberica'
          java-version: 17
      - name: Set Up Gradle
-        uses: gradle/actions/setup-gradle@d156388eb19639ec20ade50009f3d199ce1e2808 # v4.1.0
+        uses: gradle/actions/setup-gradle@0bdd871935719febd78681f197cd39af5b6e16a6 # v4.2.2
        with:
          cache-read-only: false
      - name: Configure Gradle Properties
@@ -42,7 +42,8 @@ spring-*/src/main/java/META-INF/MANIFEST.MF
 *.iml
 *.ipr
 *.iws
-.idea
+.idea/*
+!.idea/icon.svg
 out
 test-output
 atlassian-ide-plugin.xml
@@ -0,0 +1,52 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Generator: Adobe Illustrator 24.0.3, SVG Export Plug-In . SVG Version: 6.00 Build 0)  -->
+<svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
+	 viewBox="0 0 510 510" style="enable-background:new 0 0 510 510;" xml:space="preserve">
+<style type="text/css">
+	.st0{fill:#6DB33F;}
+</style>
+<title>icon-framework</title>
+<g id="Layer_2_1_">
+	<g id="Layer_1-2">
+		<path class="st0" d="M479.2,162.5c-5.6-34.3-20.5-64.4-43.9-87.8S382,36.5,347.6,30.9C320.1,11.2,288.5,0,255,0
+			s-65.1,11.2-92.6,30.9C128,36.5,98,51.3,74.7,74.7C50.9,98.4,36.5,128.7,31,162.2C11.2,189.8,0,221.4,0,255s11.2,65.2,31,92.8
+			c5.5,33.5,19.9,63.8,43.7,87.5c23.3,23.3,53.3,38.2,87.7,43.8C190,498.8,221.5,510,255,510s65-11.2,92.6-30.9
+			c34.4-5.6,64.4-20.5,87.7-43.8c23.8-23.8,38.1-54.1,43.7-87.5c19.8-27.6,31-59.2,31-92.8S498.8,190,479.2,162.5z M473,224.2
+			c-0.8,6-1.9,11.9-3.2,17.9c-7.2-22.4-17.1-43.8-29.4-63.8c-5.5-22.8-13.6-44.9-24.4-65.8c22.9,14.8,42.2,32.6,56.7,52.6
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+			c19,5.9,37.2,13.9,54.5,23.7c9.8,17.3,17.8,35.6,23.7,54.7C417.6,144.9,405.5,130.7,392.4,117.6L392.4,117.6z M430.5,79.5
+			c19.4,19.3,32.6,43.6,39.3,71.1c-16.2-19.2-36.6-36.2-60.4-50c-13.8-23.8-30.8-44.2-50-60.4C387.1,46.9,411.2,60.1,430.5,79.5
+			L430.5,79.5z M397.6,94c-20.8-10.7-42.8-18.8-65.6-24.2c-20-12.4-41.5-22.4-63.9-29.6c15.5-3.4,31.3-5.1,47.2-5.2
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+	</g>
+</g>
+</svg>
@@ -1,3 +1,3 @@
 # Enable auto-env through the sdkman_auto_env config
 # Add key=value pairs of SDKs to use below
-java=17.0.12-librca
+java=17.0.13-librca
@@ -16,7 +16,7 @@ First off, thank you for taking the time to contribute! :+1: :tada:

 ### Code of Conduct

-This project is governed by the [Spring Code of Conduct](CODE_OF_CONDUCT.adoc).
+This project is governed by the [Spring Code of Conduct](https://github.com/spring-projects/spring-framework#coc-ov-file).
 By participating you are expected to uphold this code.
 Please report unacceptable behavior to spring-code-of-conduct@spring.io.

@@ -65,10 +65,6 @@ follow-up reports will need to be created as new issues with a fresh description

 #### Submit a Pull Request

-1. If you have not previously done so, please sign the
-[Contributor License Agreement](https://cla.spring.io/sign/spring). You will be reminded
-automatically when you submit the PR.
-
 1. Should you create an issue first? No, just create the pull request and use the
 description to provide context and motivation, as you would for an issue. If you want
 to start a discussion first or have already created an issue, once a pull request is
@@ -85,6 +81,11 @@ multiple edits or corrections of the same logical change. See
 [Rewriting History section of Pro Git](https://git-scm.com/book/en/Git-Tools-Rewriting-History)
 for an overview of streamlining the commit history.

+1. All commits must include a _Signed-off-by_ trailer at the end of each commit message
+to indicate that the contributor agrees to the Developer Certificate of Origin.
+For additional details, please refer to the blog post
+[Hello DCO, Goodbye CLA: Simplifying Contributions to Spring](https://spring.io/blog/2025/01/06/hello-dco-goodbye-cla-simplifying-contributions-to-spring).
+
 1. Format commit messages using 55 characters for the subject line, 72 characters per line
 for the description, followed by the issue fixed, for example, `Closes gh-22276`. See the
 [Commit Guidelines section of Pro Git](https://git-scm.com/book/en/Distributed-Git-Contributing-to-a-Project#Commit-Guidelines)
@@ -9,7 +9,7 @@ plugins {
 	id 'io.github.goooler.shadow' version '8.1.8' apply false
 	id 'me.champeau.jmh' version '0.7.2' apply false
 	id 'me.champeau.mrjar' version '0.1.1'
-	id "net.ltgt.errorprone" version "3.1.0" apply false
+	id "net.ltgt.errorprone" version "4.1.0" apply false
 }

 ext {
@@ -25,17 +25,17 @@ configure(allprojects) { project ->
 	repositories {
 		mavenCentral()
 		maven {
-			url "https://repo.spring.io/milestone"
+			url = "https://repo.spring.io/milestone"
 			content {
 				// Netty 5 optional support
 				includeGroup 'io.projectreactor.netty'
 			}
 		}
 		if (version.contains('-')) {
-			maven { url "https://repo.spring.io/milestone" }
+			maven { url = "https://repo.spring.io/milestone" }
 		}
 		if (version.endsWith('-SNAPSHOT')) {
-			maven { url "https://repo.spring.io/snapshot" }
+			maven { url = "https://repo.spring.io/snapshot" }
 		}
 	}
 	configurations.all {
@@ -91,7 +91,7 @@ configure([rootProject] + javaProjects) { project ->
 			"https://docs.oracle.com/en/java/javase/17/docs/api/",
 			"https://jakarta.ee/specifications/platform/9/apidocs/",
 			"https://docs.jboss.org/hibernate/orm/5.6/javadocs/",
-			"https://eclipse.dev/aspectj/doc/released/aspectj5rt-api",
+			"https://eclipse.dev/aspectj/doc/latest/runtime-api/",
 			"https://www.quartz-scheduler.org/api/2.3.0/",
 			"https://fasterxml.github.io/jackson-core/javadoc/2.14/",
 			"https://fasterxml.github.io/jackson-databind/javadoc/2.14/",
@@ -102,7 +102,7 @@ configure([rootProject] + javaProjects) { project ->
 			// TODO Uncomment link to JUnit 5 docs once we execute Gradle with Java 18+.
 			// See https://github.com/spring-projects/spring-framework/issues/27497
 			//
-			// "https://junit.org/junit5/docs/5.11.3/api/",
+			// "https://junit.org/junit5/docs/5.12.2/api/",
 			"https://www.reactive-streams.org/reactive-streams-1.0.3-javadoc/",
 			//"https://javadoc.io/static/io.rsocket/rsocket-core/1.1.1/",
 			"https://r2dbc.io/spec/1.0.0.RELEASE/api/",
@@ -1,2 +1,2 @@
 org.gradle.caching=true
-javaFormatVersion=0.0.42
+javaFormatVersion=0.0.43
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2024 the original author or authors.
+ * Copyright 2002-2025 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -50,7 +50,7 @@ public class CheckstyleConventions {
 			project.getPlugins().apply(CheckstylePlugin.class);
 			project.getTasks().withType(Checkstyle.class).forEach(checkstyle -> checkstyle.getMaxHeapSize().set("1g"));
 			CheckstyleExtension checkstyle = project.getExtensions().getByType(CheckstyleExtension.class);
-			checkstyle.setToolVersion("10.20.1");
+			checkstyle.setToolVersion("10.23.1");
 			checkstyle.getConfigDirectory().set(project.getRootProject().file("src/checkstyle"));
 			String version = SpringJavaFormatPlugin.class.getPackage().getImplementationVersion();
 			DependencySet checkstyleDependencies = project.getConfigurations().getByName("checkstyle").getDependencies();
@@ -64,7 +64,7 @@ public class CheckstyleConventions {
 		NoHttpExtension noHttp = project.getExtensions().getByType(NoHttpExtension.class);
 		noHttp.setAllowlistFile(project.file("src/nohttp/allowlist.lines"));
 		noHttp.getSource().exclude("**/test-output/**", "**/.settings/**",
-				"**/.classpath", "**/.project", "**/.gradle/**", "**/node_modules/**");
+				"**/.classpath", "**/.project", "**/.gradle/**", "**/node_modules/**", "buildSrc/build/**");
 		List<String> buildFolders = List.of("bin", "build", "out");
 		project.allprojects(subproject -> {
 			Path rootPath = project.getRootDir().toPath();
@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2024 the original author or authors.
+ * Copyright 2002-2025 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
@@ -21,6 +21,8 @@ import java.util.Map;
 import org.gradle.api.Project;
 import org.gradle.api.plugins.JavaBasePlugin;
 import org.gradle.api.tasks.testing.Test;
+import org.gradle.api.tasks.testing.TestFrameworkOptions;
+import org.gradle.api.tasks.testing.junitplatform.JUnitPlatformOptions;
 import org.gradle.testretry.TestRetryPlugin;
 import org.gradle.testretry.TestRetryTaskExtension;

@@ -34,6 +36,7 @@ import org.gradle.testretry.TestRetryTaskExtension;
 *
 * @author Brian Clozel
 * @author Andy Wilkinson
+ * @author Sam Brannen
 */
 class TestConventions {

@@ -50,7 +53,12 @@ class TestConventions {
 	}

 	private void configureTests(Project project, Test test) {
-		test.useJUnitPlatform();
+		TestFrameworkOptions existingOptions = test.getOptions();
+		test.useJUnitPlatform(options -> {
+			if (existingOptions instanceof JUnitPlatformOptions junitPlatformOptions) {
+				options.copyFrom(junitPlatformOptions);
+			}
+		});
 		test.include("**/*Tests.class", "**/*Test.class");
 		test.setSystemProperties(Map.of(
 				"java.awt.headless", "true",
@@ -27,6 +27,7 @@ import org.gradle.api.attributes.Usage;
 import org.gradle.api.attributes.java.TargetJvmVersion;
 import org.gradle.api.plugins.JavaPlugin;
 import org.gradle.api.plugins.jvm.JvmTestSuite;
+import org.gradle.api.tasks.TaskProvider;
 import org.gradle.api.tasks.testing.Test;
 import org.gradle.testing.base.TestingExtension;

@@ -52,7 +53,7 @@ public class RuntimeHintsAgentPlugin implements Plugin<Project> {
 			TestingExtension testing = project.getExtensions().getByType(TestingExtension.class);
 			JvmTestSuite jvmTestSuite = (JvmTestSuite) testing.getSuites().getByName("test");
 			RuntimeHintsAgentExtension agentExtension = createRuntimeHintsAgentExtension(project);
-			Test agentTest = project.getTasks().create(RUNTIMEHINTS_TEST_TASK, Test.class, test -> {
+			TaskProvider<Test> agentTest = project.getTasks().register(RUNTIMEHINTS_TEST_TASK, Test.class, test -> {
 				test.useJUnitPlatform(options -> {
 					options.includeTags("RuntimeHintsTests");
 				});
@@ -63,7 +64,7 @@ public class RuntimeHintsAgentPlugin implements Plugin<Project> {
 				test.setClasspath(jvmTestSuite.getSources().getRuntimeClasspath());
 				test.getJvmArgumentProviders().add(createRuntimeHintsAgentArgumentProvider(project, agentExtension));
 			});
-			project.getTasks().getByName("check", task -> task.dependsOn(agentTest));
+			project.getTasks().named("check", task -> task.dependsOn(agentTest));
 			project.getDependencies().add(CONFIGURATION_NAME, project.project(":spring-core-test"));
 		});
 	}
@@ -1,6 +1,6 @@
 plugins {
 	id 'java-platform'
-	id 'io.freefair.aggregate-javadoc' version '8.3'
+	id 'io.freefair.aggregate-javadoc' version '8.13.1'
 }

 description = "Spring Framework API Docs"
@@ -9,7 +9,7 @@ apply from: "${rootDir}/gradle/publications.gradle"

 repositories {
 	maven {
-		url "https://repo.spring.io/release"
+		url = "https://repo.spring.io/release"
 	}
 }

@@ -21,6 +21,7 @@ dependencies {

 javadoc {
 	title = "${rootProject.description} ${version} API"
+	failOnError = true
 	options {
 		encoding = "UTF-8"
 		memberLevel = JavadocMemberLevel.PROTECTED
@@ -31,8 +32,9 @@ javadoc {
 		destinationDir = project.java.docsDir.dir("javadoc-api").get().asFile
 		splitIndex = true
 		links(rootProject.ext.javadocLinks)
-		addBooleanOption('Xdoclint:syntax,reference', true) // only check syntax and reference with doclint
-		addBooleanOption('Werror', true) // fail build on Javadoc warnings
+		// Check for 'syntax' and 'reference' during linting.
+		addBooleanOption('Xdoclint:syntax,reference', true)
+		addBooleanOption('Werror', true)  // fail build on Javadoc warnings
 	}
 	maxMemory = "1024m"
 	doFirst {
@@ -87,7 +89,7 @@ tasks.register('schemaZip', Zip) {
 	archiveClassifier.set("schema")
 	description = "Builds -${archiveClassifier} archive containing all " +
 			"XSDs for deployment at https://springframework.org/schema."
-	duplicatesStrategy DuplicatesStrategy.EXCLUDE
+	duplicatesStrategy = DuplicatesStrategy.EXCLUDE
 	moduleProjects.each { module ->
 		def Properties schemas = new Properties();

@@ -36,4 +36,4 @@ runtime:
    failure_level: warn
 ui:
  bundle:
-    url: https://github.com/spring-io/antora-ui-spring/releases/download/v0.4.17/ui-bundle.zip
+    url: https://github.com/spring-io/antora-ui-spring/releases/download/v0.4.18/ui-bundle.zip
@@ -37,38 +37,39 @@ javadoc {

 repositories {
 	maven {
-		url "https://repo.spring.io/release"
+		url = "https://repo.spring.io/release"
 	}
 }

 dependencies {
-	api(project(":spring-aspects"))
-	api(project(":spring-context"))
-	api(project(":spring-context-support"))
-	api(project(":spring-jdbc"))
-	api(project(":spring-jms"))
-	api(project(":spring-test"))
-	api(project(":spring-web"))
-	api(project(":spring-webflux"))
-	api(project(":spring-webmvc"))
-	api(project(":spring-websocket"))
-
-	api("com.fasterxml.jackson.core:jackson-databind")
-	api("com.fasterxml.jackson.module:jackson-module-parameter-names")
-	api("com.mchange:c3p0:0.9.5.5")
-	api("com.oracle.database.jdbc:ojdbc11")
-	api("io.projectreactor.netty:reactor-netty-http")
-	api("jakarta.jms:jakarta.jms-api")
-	api("jakarta.servlet:jakarta.servlet-api")
-	api("jakarta.resource:jakarta.resource-api")
-	api("jakarta.validation:jakarta.validation-api")
-	api("javax.cache:cache-api")
-	api("org.apache.activemq:activemq-ra:6.1.2")
-	api("org.apache.commons:commons-dbcp2:2.11.0")
-	api("org.aspectj:aspectjweaver")
-	api("org.eclipse.jetty.websocket:jetty-websocket-jetty-api")
-	api("org.jetbrains.kotlin:kotlin-stdlib")
-
+	implementation(project(":spring-aspects"))
+	implementation(project(":spring-context"))
+	implementation(project(":spring-context-support"))
 	implementation(project(":spring-core-test"))
+	implementation(project(":spring-jdbc"))
+	implementation(project(":spring-jms"))
+	implementation(project(":spring-test"))
+	implementation(project(":spring-web"))
+	implementation(project(":spring-webflux"))
+	implementation(project(":spring-webmvc"))
+	implementation(project(":spring-websocket"))
+
+	implementation("com.fasterxml.jackson.core:jackson-databind")
+	implementation("com.fasterxml.jackson.module:jackson-module-parameter-names")
+	implementation("com.mchange:c3p0:0.9.5.5")
+	implementation("com.oracle.database.jdbc:ojdbc11")
+	implementation("io.projectreactor.netty:reactor-netty-http")
+	implementation("jakarta.jms:jakarta.jms-api")
+	implementation("jakarta.servlet:jakarta.servlet-api")
+	implementation("jakarta.resource:jakarta.resource-api")
+	implementation("jakarta.validation:jakarta.validation-api")
+	implementation("jakarta.websocket:jakarta.websocket-client-api")
+	implementation("javax.cache:cache-api")
+	implementation("org.apache.activemq:activemq-ra:6.1.2")
+	implementation("org.apache.commons:commons-dbcp2:2.11.0")
+	implementation("org.aspectj:aspectjweaver")
 	implementation("org.assertj:assertj-core")
+	implementation("org.eclipse.jetty.websocket:jetty-websocket-jetty-api")
+	implementation("org.jetbrains.kotlin:kotlin-stdlib")
+	implementation("org.junit.jupiter:junit-jupiter-api")
 }
@@ -60,6 +60,7 @@
 **** xref:core/expressions/language-ref/constructors.adoc[]
 **** xref:core/expressions/language-ref/variables.adoc[]
 **** xref:core/expressions/language-ref/functions.adoc[]
+**** xref:core/expressions/language-ref/varargs.adoc[]
 **** xref:core/expressions/language-ref/bean-references.adoc[]
 **** xref:core/expressions/language-ref/operator-ternary.adoc[]
 **** xref:core/expressions/language-ref/operator-elvis.adoc[]
@@ -92,11 +92,25 @@ the repeated JNDI lookup overhead. See
 {spring-framework-api}++/jndi/JndiLocatorDelegate.html#IGNORE_JNDI_PROPERTY_NAME++[`JndiLocatorDelegate`]
 for details.

+| `spring.locking.strict`
+| Instructs Spring to enforce strict locking during bean creation, rather than the mix of
+strict and lenient locking that 6.2 applies by default. See
+{spring-framework-api}++/beans/factory/support/DefaultListableBeanFactory.html#STRICT_LOCKING_PROPERTY_NAME++[`DefaultListableBeanFactory`]
+for details.
+
 | `spring.objenesis.ignore`
 | Instructs Spring to ignore Objenesis, not even attempting to use it. See
 {spring-framework-api}++/objenesis/SpringObjenesis.html#IGNORE_OBJENESIS_PROPERTY_NAME++[`SpringObjenesis`]
 for details.

+| `spring.placeholder.escapeCharacter.default`
+| The default escape character for property placeholder support. If not set, `'\'` will
+be used. Can be set to a custom escape character or an empty string to disable support
+for an escape character. The default escape character be explicitly overridden in
+`PropertySourcesPlaceholderConfigurer` and subclasses of `AbstractPropertyResolver`. See
+{spring-framework-api}++/core/env/AbstractPropertyResolver.html#DEFAULT_PLACEHOLDER_ESCAPE_CHARACTER_PROPERTY_NAME++[`AbstractPropertyResolver`]
+for details.
+
 | `spring.test.aot.processing.failOnError`
 | A boolean flag that controls whether errors encountered during AOT processing in the
 _Spring TestContext Framework_ should result in an exception that fails the overall process.
@@ -33,11 +33,11 @@ arbitrary advice types. This section describes the basic concepts and standard a
 [[aop-api-advice-around]]
 === Interception Around Advice

-The most fundamental advice type in Spring is interception around advice.
+The most fundamental advice type in Spring is _interception around advice_.

-Spring is compliant with the AOP `Alliance` interface for around advice that uses method
-interception. Classes that implement `MethodInterceptor` and that implement around advice should also implement the
-following interface:
+Spring is compliant with the AOP Alliance interface for around advice that uses method
+interception. Classes that implement around advice should therefore implement the
+following `MethodInterceptor` interface from the `org.aopalliance.intercept` package:

 [source,java,indent=0,subs="verbatim,quotes"]
 ----
@@ -49,8 +49,8 @@ following interface:

 The `MethodInvocation` argument to the `invoke()` method exposes the method being
 invoked, the target join point, the AOP proxy, and the arguments to the method. The
-`invoke()` method should return the invocation's result: the return value of the join
-point.
+`invoke()` method should return the invocation's result: typically the return value of
+the join point.

 The following example shows a simple `MethodInterceptor` implementation:

@@ -64,9 +64,9 @@ Java::

 		public Object invoke(MethodInvocation invocation) throws Throwable {
 			System.out.println("Before: invocation=[" + invocation + "]");
-			Object rval = invocation.proceed();
+			Object result = invocation.proceed();
 			System.out.println("Invocation returned");
-			return rval;
+			return result;
 		}
 	}
 ----
@@ -79,9 +79,9 @@ Kotlin::

 		override fun invoke(invocation: MethodInvocation): Any {
 			println("Before: invocation=[$invocation]")
-			val rval = invocation.proceed()
+			val result = invocation.proceed()
 			println("Invocation returned")
-			return rval
+			return result
 		}
 	}
 ----
@@ -105,7 +105,7 @@ currently define pointcut interfaces.
 [[aop-api-advice-before]]
 === Before Advice

-A simpler advice type is a before advice. This does not need a `MethodInvocation`
+A simpler advice type is a _before advice_. This does not need a `MethodInvocation`
 object, since it is called only before entering the method.

 The main advantage of a before advice is that there is no need to invoke the `proceed()`
@@ -122,10 +122,6 @@ The following listing shows the `MethodBeforeAdvice` interface:
 	}
 ----

-(Spring's API design would allow for
-field before advice, although the usual objects apply to field interception and it is
-unlikely for Spring to ever implement it.)
-
 Note that the return type is `void`. Before advice can insert custom behavior before the join
 point runs but cannot change the return value. If a before advice throws an
 exception, it stops further execution of the interceptor chain. The exception
@@ -176,10 +172,10 @@ TIP: Before advice can be used with any pointcut.
 [[aop-api-advice-throws]]
 === Throws Advice

-Throws advice is invoked after the return of the join point if the join point threw
+_Throws advice_ is invoked after the return of the join point if the join point threw
 an exception. Spring offers typed throws advice. Note that this means that the
 `org.springframework.aop.ThrowsAdvice` interface does not contain any methods. It is a
-tag interface identifying that the given object implements one or more typed throws
+marker interface identifying that the given object implements one or more typed throws
 advice methods. These should be in the following form:

 [source,java,indent=0,subs="verbatim,quotes"]
@@ -189,9 +185,10 @@ advice methods. These should be in the following form:

 Only the last argument is required. The method signatures may have either one or four
 arguments, depending on whether the advice method is interested in the method and
-arguments. The next two listing show classes that are examples of throws advice.
+arguments. The next two listings show classes that are examples of throws advice.

-The following advice is invoked if a `RemoteException` is thrown (including from subclasses):
+The following advice is invoked if a `RemoteException` is thrown (including subclasses of
+`RemoteException`):

 [tabs]
 ======
@@ -220,9 +217,9 @@ Kotlin::
 ----
 ======

-Unlike the preceding
-advice, the next example declares four arguments, so that it has access to the invoked method, method
-arguments, and target object. The following advice is invoked if a `ServletException` is thrown:
+Unlike the preceding advice, the next example declares four arguments, so that it has
+access to the invoked method, method arguments, and target object. The following advice
+is invoked if a `ServletException` is thrown:

 [tabs]
 ======
@@ -304,7 +301,7 @@ TIP: Throws advice can be used with any pointcut.
 [[aop-api-advice-after-returning]]
 === After Returning Advice

-An after returning advice in Spring must implement the
+An _after returning advice_ in Spring must implement the
 `org.springframework.aop.AfterReturningAdvice` interface, which the following listing shows:

 [source,java,indent=0,subs="verbatim,quotes"]
@@ -368,7 +365,7 @@ TIP: After returning advice can be used with any pointcut.
 [[aop-api-advice-introduction]]
 === Introduction Advice

-Spring treats introduction advice as a special kind of interception advice.
+Spring treats _introduction advice_ as a special kind of interception advice.

 Introduction requires an `IntroductionAdvisor` and an `IntroductionInterceptor` that
 implement the following interface:
@@ -469,20 +469,20 @@ Java::
 +
 [source,java,indent=0,subs="verbatim,quotes"]
 ----
-    RootBeanDefinition beanDefinition = new RootBeanDefinition(ClientFactoryBean.class);
-    beanDefinition.setTargetType(ResolvableType.forClassWithGenerics(ClientFactoryBean.class, MyClient.class));
-    // ...
-    registry.registerBeanDefinition("myClient", beanDefinition);
+	RootBeanDefinition beanDefinition = new RootBeanDefinition(ClientFactoryBean.class);
+	beanDefinition.setTargetType(ResolvableType.forClassWithGenerics(ClientFactoryBean.class, MyClient.class));
+	// ...
+	registry.registerBeanDefinition("myClient", beanDefinition);
 ----

 Kotlin::
 +
 [source,kotlin,indent=0,subs="verbatim,quotes"]
 ----
-    val beanDefinition = RootBeanDefinition(ClientFactoryBean::class.java)
-    beanDefinition.setTargetType(ResolvableType.forClassWithGenerics(ClientFactoryBean::class.java, MyClient::class.java));
-    // ...
-    registry.registerBeanDefinition("myClient", beanDefinition)
+	val beanDefinition = RootBeanDefinition(ClientFactoryBean::class.java)
+	beanDefinition.setTargetType(ResolvableType.forClassWithGenerics(ClientFactoryBean::class.java, MyClient::class.java));
+	// ...
+	registry.registerBeanDefinition("myClient", beanDefinition)
 ----
 ======

@@ -444,9 +444,9 @@ through Java 8's `java.util.Optional`, as the following example shows:
 	}
 ----

-You can also use a `@Nullable` annotation (of any kind in any package -- for example,
-`javax.annotation.Nullable` from JSR-305) or just leverage Kotlin built-in null-safety
-support:
+You can also use a parameter-level `@Nullable` annotation (of any kind in any package --
+for example, `javax.annotation.Nullable` from JSR-305) or just leverage Kotlin built-in
+null-safety support:

 [tabs]
 ======
@@ -477,6 +477,13 @@ Kotlin::
 ----
 ======

+[NOTE]
+====
+A type-level `@Nullable` annotation such as from JSpecify is not supported in Spring
+Framework 6.2 yet. You need to upgrade to Spring Framework 7.0 where the framework
+detects type-level annotations and consistently declares JSpecify in its own codebase.
+====
+
 You can also use `@Autowired` for interfaces that are well-known resolvable
 dependencies: `BeanFactory`, `ApplicationContext`, `Environment`, `ResourceLoader`,
 `ApplicationEventPublisher`, and `MessageSource`. These interfaces and their extended
@@ -9,15 +9,15 @@ Java::
 +
 [source,java,indent=0,subs="verbatim,quotes"]
 ----
-    @Component
-    public class MovieRecommender {
+	@Component
+	public class MovieRecommender {

-        private final String catalog;
+		private final String catalog;

-        public MovieRecommender(@Value("${catalog.name}") String catalog) {
-            this.catalog = catalog;
-        }
-    }
+		public MovieRecommender(@Value("${catalog.name}") String catalog) {
+			this.catalog = catalog;
+		}
+	}
 ----

 Kotlin::
@@ -37,9 +37,9 @@ Java::
 +
 [source,java,indent=0,subs="verbatim,quotes"]
 ----
-    @Configuration
-    @PropertySource("classpath:application.properties")
-    public class AppConfig { }
+	@Configuration
+	@PropertySource("classpath:application.properties")
+	public class AppConfig { }
 ----

 Kotlin::
@@ -56,7 +56,7 @@ And the following `application.properties` file:

 [source,java,indent=0,subs="verbatim,quotes"]
 ----
-    catalog.name=MovieCatalog
+	catalog.name=MovieCatalog
 ----

 In that case, the `catalog` parameter and field will be equal to the `MovieCatalog` value.
@@ -101,8 +101,11 @@ NOTE: When configuring a `PropertySourcesPlaceholderConfigurer` using JavaConfig

 Using the above configuration ensures Spring initialization failure if any `${}`
 placeholder could not be resolved. It is also possible to use methods like
-`setPlaceholderPrefix`, `setPlaceholderSuffix`, `setValueSeparator`, or
-`setEscapeCharacter` to customize placeholders.
+`setPlaceholderPrefix()`, `setPlaceholderSuffix()`, `setValueSeparator()`, or
+`setEscapeCharacter()` to customize the placeholder syntax. In addition, the default
+escape character can be changed or disabled globally by setting the
+`spring.placeholder.escapeCharacter.default` property via a JVM system property (or via
+the xref:appendix.adoc#appendix-spring-properties[`SpringProperties`] mechanism).

 NOTE: Spring Boot configures by default a `PropertySourcesPlaceholderConfigurer` bean that
 will get properties from `application.properties` and `application.yml` files.
@@ -119,15 +122,15 @@ Java::
 +
 [source,java,indent=0,subs="verbatim,quotes"]
 ----
-    @Component
-    public class MovieRecommender {
+	@Component
+	public class MovieRecommender {

-        private final String catalog;
+		private final String catalog;

-        public MovieRecommender(@Value("${catalog.name:defaultCatalog}") String catalog) {
-            this.catalog = catalog;
-        }
-    }
+		public MovieRecommender(@Value("${catalog.name:defaultCatalog}") String catalog) {
+			this.catalog = catalog;
+		}
+	}
 ----

 Kotlin::
@@ -150,16 +153,16 @@ Java::
 +
 [source,java,indent=0,subs="verbatim,quotes"]
 ----
-    @Configuration
-    public class AppConfig {
+	@Configuration
+	public class AppConfig {

-        @Bean
-        public ConversionService conversionService() {
-            DefaultFormattingConversionService conversionService = new DefaultFormattingConversionService();
-            conversionService.addConverter(new MyCustomConverter());
-            return conversionService;
-        }
-    }
+		@Bean
+		public ConversionService conversionService() {
+			DefaultFormattingConversionService conversionService = new DefaultFormattingConversionService();
+			conversionService.addConverter(new MyCustomConverter());
+			return conversionService;
+		}
+	}
 ----

 Kotlin::
@@ -188,15 +191,15 @@ Java::
 +
 [source,java,indent=0,subs="verbatim,quotes"]
 ----
-    @Component
-    public class MovieRecommender {
+	@Component
+	public class MovieRecommender {

-        private final String catalog;
+		private final String catalog;

-        public MovieRecommender(@Value("#{systemProperties['user.catalog'] + 'Catalog' }") String catalog) {
-            this.catalog = catalog;
-        }
-    }
+		public MovieRecommender(@Value("#{systemProperties['user.catalog'] + 'Catalog' }") String catalog) {
+			this.catalog = catalog;
+		}
+	}
 ----

 Kotlin::
@@ -217,16 +220,16 @@ Java::
 +
 [source,java,indent=0,subs="verbatim,quotes"]
 ----
-    @Component
-    public class MovieRecommender {
+	@Component
+	public class MovieRecommender {

-        private final Map<String, Integer> countOfMoviesPerCatalog;
+		private final Map<String, Integer> countOfMoviesPerCatalog;

-        public MovieRecommender(
-                @Value("#{{'Thriller': 100, 'Comedy': 300}}") Map<String, Integer> countOfMoviesPerCatalog) {
-            this.countOfMoviesPerCatalog = countOfMoviesPerCatalog;
-        }
-    }
+		public MovieRecommender(
+				@Value("#{{'Thriller': 100, 'Comedy': 300}}") Map<String, Integer> countOfMoviesPerCatalog) {
+			this.countOfMoviesPerCatalog = countOfMoviesPerCatalog;
+		}
+	}
 ----

 Kotlin::
@@ -119,7 +119,7 @@ Kotlin::
 +
 [source,kotlin,indent=0,subs="verbatim,quotes"]
 ----
-    val context = ClassPathXmlApplicationContext("services.xml", "daos.xml")
+	val context = ClassPathXmlApplicationContext("services.xml", "daos.xml")
 ----
 ======

@@ -310,16 +310,16 @@ Kotlin::
 +
 [source,kotlin,indent=0,subs="verbatim,quotes"]
 ----
-    import org.springframework.beans.factory.getBean
+	import org.springframework.beans.factory.getBean

 	// create and configure beans
-    val context = ClassPathXmlApplicationContext("services.xml", "daos.xml")
+	val context = ClassPathXmlApplicationContext("services.xml", "daos.xml")

-    // retrieve configured instance
-    val service = context.getBean<PetStoreService>("petStore")
+	// retrieve configured instance
+	val service = context.getBean<PetStoreService>("petStore")

-    // use configured instance
-    var userList = service.getUsernameList()
+	// use configured instance
+	var userList = service.getUsernameList()
 ----
 ======

@@ -513,7 +513,7 @@ the classes above:
 		<property name="notificationAddress" value="blockedlist@example.org"/>
 	</bean>

-    <!-- optional: a custom ApplicationEventMulticaster definition -->
+	<!-- optional: a custom ApplicationEventMulticaster definition -->
 	<bean id="applicationEventMulticaster" class="org.springframework.context.event.SimpleApplicationEventMulticaster">
 		<property name="taskExecutor" ref="..."/>
 		<property name="errorHandler" ref="..."/>
@@ -578,6 +578,8 @@ Kotlin::
 ----
 ======

+NOTE: Do not define such beans to be lazy as the `ApplicationContext` will honour that and will not register the method to listen to events.
+
 The method signature once again declares the event type to which it listens,
 but, this time, with a flexible name and without implementing a specific listener interface.
 The event type can also be narrowed through generics as long as the actual event type
@@ -57,9 +57,9 @@ The following table describes these properties:
 In addition to bean definitions that contain information on how to create a specific
 bean, the `ApplicationContext` implementations also permit the registration of existing
 objects that are created outside the container (by users). This is done by accessing the
-ApplicationContext's `BeanFactory` through the `getBeanFactory()` method, which returns
-the `DefaultListableBeanFactory` implementation. `DefaultListableBeanFactory` supports
-this registration through the `registerSingleton(..)` and `registerBeanDefinition(..)`
+ApplicationContext's `BeanFactory` through the `getAutowireCapableBeanFactory()` method,
+which returns the `DefaultListableBeanFactory` implementation. `DefaultListableBeanFactory`
+supports this registration through the `registerSingleton(..)` and `registerBeanDefinition(..)`
 methods. However, typical applications work solely with beans defined through regular
 bean definition metadata.

@@ -3,7 +3,7 @@

 If a bean is a dependency of another bean, that usually means that one bean is set as a
 property of another. Typically you accomplish this with the
-xref:core/beans/dependencies/factory-properties-detailed.adoc#beans-ref-element[`<ref/>` element>]
+xref:core/beans/dependencies/factory-properties-detailed.adoc#beans-ref-element[`<ref/>` element]
 in XML-based metadata or through xref:core/beans/dependencies/factory-autowire.adoc[autowiring].

 However, sometimes dependencies between beans are less direct. An example is when a static
@@ -120,8 +120,6 @@ dynamically generate a subclass that overrides the method.
  subclasses cannot be `final`, and the method to be overridden cannot be `final`, either.
 * Unit-testing a class that has an `abstract` method requires you to subclass the class
  yourself and to supply a stub implementation of the `abstract` method.
-* Concrete methods are also necessary for component scanning, which requires concrete
-  classes to pick up.
 * A further key limitation is that lookup methods do not work with factory methods and
  in particular not with `@Bean` methods in configuration classes, since, in that case,
  the container is not in charge of creating the instance and therefore cannot create
@@ -293,11 +291,6 @@ Kotlin::
 ----
 ======

-Note that you should typically declare such annotated lookup methods with a concrete
-stub implementation, in order for them to be compatible with Spring's component
-scanning rules where abstract classes get ignored by default. This limitation does not
-apply to explicitly registered or explicitly imported bean classes.
-
 [TIP]
 ====
 Another way of accessing differently scoped target beans is an `ObjectFactory`/
@@ -168,8 +168,8 @@ listings shows how to use the `parent` attribute:

 [source,xml,indent=0,subs="verbatim,quotes"]
 ----
-	<!-- in the child (descendant) context -->
-	<bean id="accountService" <!-- bean name is the same as the parent bean -->
+	<!-- in the child (descendant) context, bean name is the same as the parent bean -->
+	<bean id="accountService" 
 		class="org.springframework.aop.framework.ProxyFactoryBean">
 		<property name="target">
 			<ref parent="accountService"/> <!-- notice how we refer to the parent bean -->
@@ -226,7 +226,7 @@ Kotlin::
 +
 [source,kotlin,indent=0,subs="verbatim,quotes"]
 ----
-    import org.springframework.beans.factory.getBean
+	import org.springframework.beans.factory.getBean

 	fun main() {
 		val ctx = ClassPathXmlApplicationContext("scripting/beans.xml")
@@ -314,7 +314,7 @@ Thus, marking it for lazy initialization will be ignored, and the


 [[beans-factory-placeholderconfigurer]]
-=== Example: The Class Name Substitution `PropertySourcesPlaceholderConfigurer`
+=== Example: Property Placeholder Substitution with `PropertySourcesPlaceholderConfigurer`

 You can use the `PropertySourcesPlaceholderConfigurer` to externalize property values
 from a bean definition in a separate file by using the standard Java `Properties` format.
@@ -341,8 +341,8 @@ with placeholder values is defined:

 The example shows properties configured from an external `Properties` file. At runtime,
 a `PropertySourcesPlaceholderConfigurer` is applied to the metadata that replaces some
-properties of the DataSource. The values to replace are specified as placeholders of the
-form pass:q[`${property-name}`], which follows the Ant and log4j and JSP EL style.
+properties of the `DataSource`. The values to replace are specified as placeholders of the
+form pass:q[`${property-name}`], which follows the Ant, log4j, and JSP EL style.

 The actual values come from another file in the standard Java `Properties` format:

@@ -355,11 +355,15 @@ jdbc.password=root
 ----

 Therefore, the `${jdbc.username}` string is replaced at runtime with the value, 'sa', and
-the same applies for other placeholder values that match keys in the properties file.
-The `PropertySourcesPlaceholderConfigurer` checks for placeholders in most properties and
-attributes of a bean definition. Furthermore, you can customize the placeholder prefix and suffix.
+the same applies for other placeholder values that match keys in the properties file. The
+`PropertySourcesPlaceholderConfigurer` checks for placeholders in most properties and
+attributes of a bean definition. Furthermore, you can customize the placeholder prefix,
+suffix, default value separator, and escape character. In addition, the default escape
+character can be changed or disabled globally by setting the
+`spring.placeholder.escapeCharacter.default` property via a JVM system property (or via
+the xref:appendix.adoc#appendix-spring-properties[`SpringProperties`] mechanism).

-With the `context` namespace introduced in Spring 2.5, you can configure property placeholders
+With the `context` namespace, you can configure property placeholders
 with a dedicated configuration element. You can provide one or more locations as a
 comma-separated list in the `location` attribute, as the following example shows:

@@ -64,7 +64,7 @@ This prevents the same `@Bean` method from accidentally being invoked through a
 Java method call, which helps to reduce subtle bugs that can be hard to track down.

 When `@Bean` methods are declared within classes that are not annotated with
-`@Configuration` - or when `@Configuration(proxyBeanMethods=false)` is declared -,
+`@Configuration`, or when `@Configuration(proxyBeanMethods=false)` is declared,
 they are referred to as being processed in a "lite" mode. In such scenarios,
 `@Bean` methods are effectively a general-purpose factory method mechanism without
 special runtime processing (that is, without generating a CGLIB subclass for it).
@@ -3,8 +3,10 @@

 You can invoke constructors by using the `new` operator. You should use the fully
 qualified class name for all types except those located in the `java.lang` package
-(`Integer`, `Float`, `String`, and so on). The following example shows how to use the
-`new` operator to invoke constructors:
+(`Integer`, `Float`, `String`, and so on).
+xref:core/expressions/language-ref/varargs.adoc[Varargs] are also supported.
+
+The following example shows how to use the `new` operator to invoke constructors.

 [tabs]
 ======
@@ -12,30 +14,29 @@ Java::
 +
 [source,java,indent=0,subs="verbatim,quotes"]
 ----
-	Inventor einstein = p.parseExpression(
-			"new org.spring.samples.spel.inventor.Inventor('Albert Einstein', 'German')")
+	Inventor einstein = parser.parseExpression(
+		"new org.spring.samples.spel.inventor.Inventor('Albert Einstein', 'German')")
 			.getValue(Inventor.class);

 	// create new Inventor instance within the add() method of List
-	p.parseExpression(
-			"Members.add(new org.spring.samples.spel.inventor.Inventor(
-				'Albert Einstein', 'German'))").getValue(societyContext);
+	parser.parseExpression(
+		"Members.add(new org.spring.samples.spel.inventor.Inventor('Albert Einstein', 'German'))")
+			.getValue(societyContext);
 ----

 Kotlin::
 +
 [source,kotlin,indent=0,subs="verbatim,quotes"]
 ----
-	val einstein = p.parseExpression(
-			"new org.spring.samples.spel.inventor.Inventor('Albert Einstein', 'German')")
+	val einstein = parser.parseExpression(
+		"new org.spring.samples.spel.inventor.Inventor('Albert Einstein', 'German')")
 			.getValue(Inventor::class.java)

 	// create new Inventor instance within the add() method of List
-	p.parseExpression(
-			"Members.add(new org.spring.samples.spel.inventor.Inventor('Albert Einstein', 'German'))")
+	parser.parseExpression(
+		"Members.add(new org.spring.samples.spel.inventor.Inventor('Albert Einstein', 'German'))")
 			.getValue(societyContext)
 ----
 ======


-
@@ -2,8 +2,12 @@
 = Functions

 You can extend SpEL by registering user-defined functions that can be called within
-expressions by using the `#functionName(...)` syntax. Functions can be registered as
-variables in `EvaluationContext` implementations via the `setVariable()` method.
+expressions by using the `#functionName(...)` syntax, and like with standard method
+invocations, xref:core/expressions/language-ref/varargs.adoc[varargs] are also supported
+for function invocations.
+
+Functions can be registered as _variables_ in `EvaluationContext` implementations via the
+`setVariable()` method.

 [TIP]
 ====
@@ -110,8 +114,9 @@ potentially more efficient use cases if the `MethodHandle` target and parameters
 been fully bound prior to registration; however, partially bound handles are also
 supported.

-Consider the `String#formatted(String, Object...)` instance method, which produces a
-message according to a template and a variable number of arguments.
+Consider the `String#formatted(Object...)` instance method, which produces a message
+according to a template and a variable number of arguments
+(xref:core/expressions/language-ref/varargs.adoc[varargs]).

 You can register and use the `formatted` method as a `MethodHandle`, as the following
 example shows:
@@ -151,10 +156,10 @@ Kotlin::
 ----
 ======

-As hinted above, binding a `MethodHandle` and registering the bound `MethodHandle` is also
-supported. This is likely to be more performant if both the target and all the arguments
-are bound. In that case no arguments are necessary in the SpEL expression, as the
-following example shows:
+As mentioned above, binding a `MethodHandle` and registering the bound `MethodHandle` is
+also supported. This is likely to be more performant if both the target and all the
+arguments are bound. In that case no arguments are necessary in the SpEL expression, as
+the following example shows:

 [tabs]
 ======
@@ -168,9 +173,10 @@ Java::
 	String template = "This is a %s message with %s words: <%s>";
 	Object varargs = new Object[] { "prerecorded", 3, "Oh Hello World!", "ignored" };
 	MethodHandle mh = MethodHandles.lookup().findVirtual(String.class, "formatted",
-			MethodType.methodType(String.class, Object[].class))
+		MethodType.methodType(String.class, Object[].class))
 			.bindTo(template)
-			.bindTo(varargs); //here we have to provide arguments in a single array binding
+			// Here we have to provide the arguments in a single array binding:
+			.bindTo(varargs);
 	context.setVariable("message", mh);

 	// evaluates to "This is a prerecorded message with 3 words: <Oh Hello World!>"
@@ -189,9 +195,10 @@ Kotlin::
 	val varargs = arrayOf("prerecorded", 3, "Oh Hello World!", "ignored")

 	val mh = MethodHandles.lookup().findVirtual(String::class.java, "formatted",
-			MethodType.methodType(String::class.java, Array<Any>::class.java))
+		MethodType.methodType(String::class.java, Array<Any>::class.java))
 			.bindTo(template)
-			.bindTo(varargs) //here we have to provide arguments in a single array binding
+			// Here we have to provide the arguments in a single array binding:
+			.bindTo(varargs)
 	context.setVariable("message", mh)

 	// evaluates to "This is a prerecorded message with 3 words: <Oh Hello World!>"
@@ -201,4 +208,3 @@ Kotlin::
 ======


-
@@ -1,9 +1,11 @@
 [[expressions-methods]]
 = Methods

-You can invoke methods by using typical Java programming syntax. You can also invoke methods
-on literals. Variable arguments are also supported. The following examples show how to
-invoke methods:
+You can invoke methods by using the typical Java programming syntax. You can also invoke
+methods directly on literals such as strings or numbers.
+xref:core/expressions/language-ref/varargs.adoc[Varargs] are supported as well.
+
+The following examples show how to invoke methods.

 [tabs]
 ======
@@ -0,0 +1,151 @@
+[[expressions-varargs]]
+= Varargs Invocations
+
+The Spring Expression Language supports
+https://docs.oracle.com/javase/8/docs/technotes/guides/language/varargs.html[varargs]
+invocations for xref:core/expressions/language-ref/constructors.adoc[constructors],
+xref:core/expressions/language-ref/methods.adoc[methods], and user-defined
+xref:core/expressions/language-ref/functions.adoc[functions].
+
+The following example shows how to invoke the `java.lang.String#formatted(Object...)`
+_varargs_ method within an expression by supplying the variable argument list as separate
+arguments (`'blue', 1`).
+
+[tabs]
+======
+Java::
+
+[source,java,indent=0,subs="verbatim,quotes"]
+----
+	// evaluates to "blue is color #1"
+	String expression = "'%s is color #%d'.formatted('blue', 1)";
+	String message = parser.parseExpression(expression).getValue(String.class);
+----
+
+Kotlin::
+
+[source,kotlin,indent=0,subs="verbatim,quotes"]
+----
+	// evaluates to "blue is color #1"
+	val expression = "'%s is color #%d'.formatted('blue', 1)"
+	val message = parser.parseExpression(expression).getValue(String::class.java)
+----
+======
+
+A variable argument list can also be supplied as an array, as demonstrated in the
+following example (`new Object[] {'blue', 1}`).
+
+[tabs]
+======
+Java::
+
+[source,java,indent=0,subs="verbatim,quotes"]
+----
+	// evaluates to "blue is color #1"
+	String expression = "'%s is color #%d'.formatted(new Object[] {'blue', 1})";
+	String message = parser.parseExpression(expression).getValue(String.class);
+----
+
+Kotlin::
+
+[source,kotlin,indent=0,subs="verbatim,quotes"]
+----
+	// evaluates to "blue is color #1"
+	val expression = "'%s is color #%d'.formatted(new Object[] {'blue', 1})"
+	val message = parser.parseExpression(expression).getValue(String::class.java)
+----
+======
+
+As an alternative, a variable argument list can be supplied as a `java.util.List` – for
+example, as an xref:core/expressions/language-ref/inline-lists.adoc[inline list]
+(`{'blue', 1}`). The following example shows how to do that.
+
+[tabs]
+======
+Java::
+
+[source,java,indent=0,subs="verbatim,quotes"]
+----
+	// evaluates to "blue is color #1"
+	String expression = "'%s is color #%d'.formatted({'blue', 1})";
+	String message = parser.parseExpression(expression).getValue(String.class);
+----
+
+Kotlin::
+
+[source,kotlin,indent=0,subs="verbatim,quotes"]
+----
+	// evaluates to "blue is color #1"
+	val expression = "'%s is color #%d'.formatted({'blue', 1})"
+	val message = parser.parseExpression(expression).getValue(String::class.java)
+----
+======
+
+[[expressions-varargs-type-conversion]]
+== Varargs Type Conversion
+
+In contrast to the standard support for varargs invocations in Java,
+xref:core/expressions/evaluation.adoc#expressions-type-conversion[type conversion] may be
+applied to the individual arguments when invoking varargs constructors, methods, or
+functions in SpEL.
+
+For example, if we have registered a custom
+xref:core/expressions/language-ref/functions.adoc[function] in the `EvaluationContext`
+under the name `#reverseStrings` for a method with the signature
+`String reverseStrings(String... strings)`, we can invoke that function within a SpEL
+expression with any argument that can be converted to a `String`, as demonstrated in the
+following example.
+
+[tabs]
+======
+Java::
+
+[source,java,indent=0,subs="verbatim,quotes"]
+----
+	// evaluates to "3.0, 2.0, 1, SpEL"
+	String expression = "#reverseStrings('SpEL', 1, 10F / 5, 3.0000)";
+	String message = parser.parseExpression(expression)
+			.getValue(evaluationContext, String.class);
+----
+
+Kotlin::
+
+[source,kotlin,indent=0,subs="verbatim,quotes"]
+----
+	// evaluates to "3.0, 2.0, 1, SpEL"
+	val expression = "#reverseStrings('SpEL', 1, 10F / 5, 3.0000)"
+	val message = parser.parseExpression(expression)
+			.getValue(evaluationContext, String::class.java)
+----
+======
+
+Similarly, any array whose component type is a subtype of the required varargs type can
+be supplied as the variable argument list for a varargs invocation. For example, a
+`String[]` array can be supplied to a varargs invocation that accepts an `Object...`
+argument list.
+
+The following listing demonstrates that we can supply a `String[]` array to the
+`java.lang.String#formatted(Object...)` _varargs_ method. It also highlights that `1`
+will be automatically converted to `"1"`.
+
+[tabs]
+======
+Java::
+
+[source,java,indent=0,subs="verbatim,quotes"]
+----
+	// evaluates to "blue is color #1"
+	String expression = "'%s is color #%s'.formatted(new String[] {'blue', 1})";
+	String message = parser.parseExpression(expression).getValue(String.class);
+----
+
+Kotlin::
+
+[source,kotlin,indent=0,subs="verbatim,quotes"]
+----
+	// evaluates to "blue is color #1"
+	val expression = "'%s is color #%s'.formatted(new String[] {'blue', 1})"
+	val message = parser.parseExpression(expression).getValue(String::class.java)
+----
+======
+
@@ -31,7 +31,7 @@ Java::
 ----
 public class MyBean {
 	private final Log log = LogFactory.getLog(getClass());
-    // ...
+	// ...
 }
 ----

@@ -40,8 +40,8 @@ Kotlin::
 [source,kotlin,indent=0,subs="verbatim,quotes"]
 ----
 class MyBean {
-  private val log = LogFactory.getLog(javaClass)
-  // ...
+	private val log = LogFactory.getLog(javaClass)
+	// ...
 }
 ----
 ======
@@ -399,7 +399,7 @@ A `ConstraintViolation` on the `degrees` method parameter is adapted to a
 `MessageSourceResolvable` with the following:

 - Error codes `"Max.myService#addStudent.degrees"`, `"Max.degrees"`, `"Max.int"`, `"Max"`
- Message arguments "degrees2 and 2 (the field name and the constraint attribute)
+- Message arguments "degrees" and 2 (the field name and the constraint attribute)
 - Default message "must be less than or equal to 2"

 To customize the above default message, you can add a property such as:
@@ -78,27 +78,27 @@ Java::
 +
 [source,java,indent=0,subs="verbatim,quotes"]
 ----
-    @Configuration
-    public class DataSourceConfig {
+	@Configuration
+	public class DataSourceConfig {

-        @Bean
-        public DataSource dataSource() {
-            return new EmbeddedDatabaseBuilder()
-                    .setDatabaseConfigurer(EmbeddedDatabaseConfigurers
-                            .customizeConfigurer(H2, this::customize))
-                    .addScript("schema.sql")
-                    .build();
-        }
+		@Bean
+		public DataSource dataSource() {
+			return new EmbeddedDatabaseBuilder()
+					.setDatabaseConfigurer(EmbeddedDatabaseConfigurers
+							.customizeConfigurer(H2, this::customize))
+					.addScript("schema.sql")
+					.build();
+		}

-        private EmbeddedDatabaseConfigurer customize(EmbeddedDatabaseConfigurer defaultConfigurer) {
-            return new EmbeddedDatabaseConfigurerDelegate(defaultConfigurer) {
-                @Override
-                public void configureConnectionProperties(ConnectionProperties properties, String databaseName) {
-                    super.configureConnectionProperties(properties, databaseName);
-                    properties.setDriverClass(CustomDriver.class);
-                }
-            };
-        }
+		private EmbeddedDatabaseConfigurer customize(EmbeddedDatabaseConfigurer defaultConfigurer) {
+			return new EmbeddedDatabaseConfigurerDelegate(defaultConfigurer) {
+				@Override
+				public void configureConnectionProperties(ConnectionProperties properties, String databaseName) {
+					super.configureConnectionProperties(properties, databaseName);
+					properties.setDriverClass(CustomDriver.class);
+				}
+			};
+		}
 	}
 ----

@@ -136,7 +136,7 @@ Java::
 [source,java,indent=0,subs="verbatim,quotes"]
 ----
 	Mono<Void> completion = client.sql("CREATE TABLE person (id VARCHAR(255) PRIMARY KEY, name VARCHAR(255), age INTEGER);")
-	        .then();
+			.then();
 ----

 Kotlin::
@@ -144,7 +144,7 @@ Kotlin::
 [source,kotlin,indent=0,subs="verbatim,quotes"]
 ----
 	client.sql("CREATE TABLE person (id VARCHAR(255) PRIMARY KEY, name VARCHAR(255), age INTEGER);")
-	        .await()
+			.await()
 ----
 ======

@@ -173,7 +173,7 @@ Java::
 [source,java,indent=0,subs="verbatim,quotes"]
 ----
 	Mono<Map<String, Object>> first = client.sql("SELECT id, name FROM person")
-	        .fetch().first();
+			.fetch().first();
 ----

 Kotlin::
@@ -181,7 +181,7 @@ Kotlin::
 [source,kotlin,indent=0,subs="verbatim,quotes"]
 ----
 	val first = client.sql("SELECT id, name FROM person")
-	        .fetch().awaitSingle()
+			.fetch().awaitSingle()
 ----
 ======

@@ -194,8 +194,8 @@ Java::
 [source,java,indent=0,subs="verbatim,quotes"]
 ----
 	Mono<Map<String, Object>> first = client.sql("SELECT id, name FROM person WHERE first_name = :fn")
-	        .bind("fn", "Joe")
-	        .fetch().first();
+			.bind("fn", "Joe")
+			.fetch().first();
 ----

 Kotlin::
@@ -203,8 +203,8 @@ Kotlin::
 [source,kotlin,indent=0,subs="verbatim,quotes"]
 ----
 	val first = client.sql("SELECT id, name FROM person WHERE first_name = :fn")
-	        .bind("fn", "Joe")
-	        .fetch().awaitSingle()
+			.bind("fn", "Joe")
+			.fetch().awaitSingle()
 ----
 ======

@@ -240,8 +240,8 @@ Java::
 [source,java,indent=0,subs="verbatim,quotes"]
 ----
 	Flux<String> names = client.sql("SELECT name FROM person")
-	        .map(row -> row.get("name", String.class))
-	        .all();
+			.map(row -> row.get("name", String.class))
+			.all();
 ----

 Kotlin::
@@ -249,8 +249,8 @@ Kotlin::
 [source,kotlin,indent=0,subs="verbatim,quotes"]
 ----
 	val names = client.sql("SELECT name FROM person")
-	        .map{ row: Row -> row.get("name", String.class) }
-	        .flow()
+			.map{ row: Row -> row.get("name", String.class) }
+			.flow()
 ----
 ======

@@ -301,8 +301,8 @@ Java::
 [source,java,indent=0,subs="verbatim,quotes"]
 ----
 	Mono<Integer> affectedRows = client.sql("UPDATE person SET first_name = :fn")
-	        .bind("fn", "Joe")
-	        .fetch().rowsUpdated();
+			.bind("fn", "Joe")
+			.fetch().rowsUpdated();
 ----

 Kotlin::
@@ -310,8 +310,8 @@ Kotlin::
 [source,kotlin,indent=0,subs="verbatim,quotes"]
 ----
 	val affectedRows = client.sql("UPDATE person SET first_name = :fn")
-	        .bind("fn", "Joe")
-	        .fetch().awaitRowsUpdated()
+			.bind("fn", "Joe")
+			.fetch().awaitRowsUpdated()
 ----
 ======

@@ -337,9 +337,9 @@ The following example shows parameter binding for a query:

 [source,java]
 ----
-    db.sql("INSERT INTO person (id, name, age) VALUES(:id, :name, :age)")
-	    	.bind("id", "joe")
-	    	.bind("name", "Joe")
+	db.sql("INSERT INTO person (id, name, age) VALUES(:id, :name, :age)")
+			.bind("id", "joe")
+			.bind("name", "Joe")
 			.bind("age", 34);
 ----

@@ -369,9 +369,9 @@ Indices are zero based.

 [source,java]
 ----
-    db.sql("INSERT INTO person (id, name, age) VALUES(:id, :name, :age)")
-	    	.bind(0, "joe")
-	    	.bind(1, "Joe")
+	db.sql("INSERT INTO person (id, name, age) VALUES(:id, :name, :age)")
+			.bind(0, "joe")
+			.bind(1, "Joe")
 			.bind(2, 34);
 ----

@@ -379,9 +379,9 @@ In case your application is binding to many parameters, the same can be achieved

 [source,java]
 ----
-    List<?> values = List.of("joe", "Joe", 34);
-    db.sql("INSERT INTO person (id, name, age) VALUES(:id, :name, :age)")
-	    	.bindValues(values);
+	List<?> values = List.of("joe", "Joe", 34);
+	db.sql("INSERT INTO person (id, name, age) VALUES(:id, :name, :age)")
+			.bindValues(values);
 ----


@@ -428,7 +428,7 @@ Java::
 	tuples.add(new Object[] {"Ann",  50});

 	client.sql("SELECT id, name, state FROM table WHERE (name, age) IN (:tuples)")
-		    .bind("tuples", tuples);
+			.bind("tuples", tuples);
 ----

 Kotlin::
@@ -440,7 +440,7 @@ Kotlin::
 	tuples.add(arrayOf("Ann", 50))

 	client.sql("SELECT id, name, state FROM table WHERE (name, age) IN (:tuples)")
-		    .bind("tuples", tuples)
+			.bind("tuples", tuples)
 ----
 ======

@@ -455,7 +455,7 @@ Java::
 [source,java,indent=0,subs="verbatim,quotes"]
 ----
 	client.sql("SELECT id, name, state FROM table WHERE age IN (:ages)")
-		    .bind("ages", Arrays.asList(35, 50));
+			.bind("ages", Arrays.asList(35, 50));
 ----

 Kotlin::
@@ -463,7 +463,7 @@ Kotlin::
 [source,kotlin,indent=0,subs="verbatim,quotes"]
 ----
 	client.sql("SELECT id, name, state FROM table WHERE age IN (:ages)")
-		    .bind("ages", arrayOf(35, 50))
+			.bind("ages", arrayOf(35, 50))
 ----
 ======

@@ -490,9 +490,9 @@ Java::
 [source,java,indent=0,subs="verbatim,quotes"]
 ----
 	client.sql("INSERT INTO table (name, state) VALUES(:name, :state)")
-		    .filter((s, next) -> next.execute(s.returnGeneratedValues("id")))
-		    .bind("name", …)
-		    .bind("state", …);
+			.filter((s, next) -> next.execute(s.returnGeneratedValues("id")))
+			.bind("name", …)
+			.bind("state", …);
 ----

 Kotlin::
@@ -516,10 +516,10 @@ Java::
 [source,java,indent=0,subs="verbatim,quotes"]
 ----
 	client.sql("INSERT INTO table (name, state) VALUES(:name, :state)")
-		    .filter(statement -> s.returnGeneratedValues("id"));
+			.filter(statement -> s.returnGeneratedValues("id"));

 	client.sql("SELECT id, name, state FROM table")
-		    .filter(statement -> s.fetchSize(25));
+			.filter(statement -> s.fetchSize(25));
 ----

 Kotlin::
@@ -527,10 +527,10 @@ Kotlin::
 [source,kotlin,indent=0,subs="verbatim,quotes"]
 ----
 	client.sql("INSERT INTO table (name, state) VALUES(:name, :state)")
-		    .filter { statement -> s.returnGeneratedValues("id") }
+			.filter { statement -> s.returnGeneratedValues("id") }

 	client.sql("SELECT id, name, state FROM table")
-		    .filter { statement -> s.fetchSize(25) }
+			.filter { statement -> s.fetchSize(25) }
 ----
 ======

@@ -7,7 +7,7 @@ xref:overview.adoc[Overview] :: History, Design Philosophy, Feedback,
 Getting Started.
 xref:core.adoc[Core] :: IoC Container, Events, Resources, i18n,
 Validation, Data Binding, Type Conversion, SpEL, AOP, AOT.
-<<testing.adoc#testing, Testing>> :: Mock Objects, TestContext Framework,
+xref:testing.adoc[Testing] :: Mock Objects, TestContext Framework,
 Spring MVC Test, WebTestClient.
 xref:data-access.adoc[Data Access] :: Transactions, DAO Support,
 JDBC, R2DBC, O/R Mapping, XML Marshalling.
@@ -55,11 +55,11 @@ a "shared objects file" source, as shown in the following example:

 [source,shell,indent=0,subs="verbatim"]
 ----
-    [0.064s][info][class,load] org.springframework.core.env.EnvironmentCapable source: shared objects file (top)
-    [0.064s][info][class,load] org.springframework.beans.factory.BeanFactory source: shared objects file (top)
-    [0.064s][info][class,load] org.springframework.beans.factory.ListableBeanFactory source: shared objects file (top)
-    [0.064s][info][class,load] org.springframework.beans.factory.HierarchicalBeanFactory source: shared objects file (top)
-    [0.065s][info][class,load] org.springframework.context.MessageSource source: shared objects file (top)
+	[0.064s][info][class,load] org.springframework.core.env.EnvironmentCapable source: shared objects file (top)
+	[0.064s][info][class,load] org.springframework.beans.factory.BeanFactory source: shared objects file (top)
+	[0.064s][info][class,load] org.springframework.beans.factory.ListableBeanFactory source: shared objects file (top)
+	[0.064s][info][class,load] org.springframework.beans.factory.HierarchicalBeanFactory source: shared objects file (top)
+	[0.065s][info][class,load] org.springframework.context.MessageSource source: shared objects file (top)
 ----

 If CDS can't be enabled or if you have a large number of classes that are not loaded from the cache, make sure that
@@ -6,7 +6,7 @@ the same way as Spring's integration does for the JDBC API.

 JMS can be roughly divided into two areas of functionality, namely the production and
 consumption of messages. The `JmsTemplate` class is used for message production and
-synchronous message reception. For asynchronous reception similar to Jakarta EE's
+synchronous message receipt. For asynchronous receipt similar to Jakarta EE's
 message-driven bean style, Spring provides a number of message-listener containers that
 you can use to create Message-Driven POJOs (MDPs). Spring also provides a declarative way
 to create message listeners.
@@ -5,7 +5,7 @@ This describes how to receive messages with JMS in Spring.


 [[jms-receiving-sync]]
-== Synchronous Reception
+== Synchronous Receipt

 While JMS is typically associated with asynchronous processing, you can
 consume messages synchronously. The overloaded `receive(..)` methods provide this
@@ -16,11 +16,11 @@ the receiver should wait before giving up waiting for a message.


 [[jms-receiving-async]]
-== Asynchronous reception: Message-Driven POJOs
+== Asynchronous Receipt: Message-Driven POJOs

 NOTE: Spring also supports annotated-listener endpoints through the use of the `@JmsListener`
-annotation and provides an open infrastructure to register endpoints programmatically.
-This is, by far, the most convenient way to setup an asynchronous receiver.
+annotation and provides open infrastructure to register endpoints programmatically.
+This is, by far, the most convenient way to set up an asynchronous receiver.
 See xref:integration/jms/annotated.adoc#jms-annotated-support[Enable Listener Endpoint Annotations] for more details.

 In a fashion similar to a Message-Driven Bean (MDB) in the EJB world, the Message-Driven
@@ -154,7 +154,7 @@ listener container.

 You can activate local resource transactions through the `sessionTransacted` flag
 on the listener container definition. Each message listener invocation then operates
-within an active JMS transaction, with message reception rolled back in case of listener
+within an active JMS transaction, with message receipt rolled back in case of listener
 execution failure. Sending a response message (through `SessionAwareMessageListener`) is
 part of the same local transaction, but any other resource operations (such as
 database access) operate independently. This usually requires duplicate message
@@ -173,7 +173,7 @@ To configure a message listener container for XA transaction participation, you
 to configure a `JtaTransactionManager` (which, by default, delegates to the Jakarta EE
 server's transaction subsystem). Note that the underlying JMS `ConnectionFactory` needs to
 be XA-capable and properly registered with your JTA transaction coordinator. (Check your
-Jakarta EE server's configuration of JNDI resources.) This lets message reception as well
+Jakarta EE server's configuration of JNDI resources.) This lets message receipt as well
 as (for example) database access be part of the same transaction (with unified commit
 semantics, at the expense of XA transaction log overhead).

@@ -167,13 +167,15 @@ operations that do not refer to a specific destination.

 One of the most common uses of JMS messages in the EJB world is to drive message-driven
 beans (MDBs). Spring offers a solution to create message-driven POJOs (MDPs) in a way
-that does not tie a user to an EJB container. (See xref:integration/jms/receiving.adoc#jms-receiving-async[Asynchronous reception: Message-Driven POJOs] for detailed
-coverage of Spring's MDP support.) Since Spring Framework 4.1, endpoint methods can be
-annotated with `@JmsListener` -- see xref:integration/jms/annotated.adoc[Annotation-driven Listener Endpoints] for more details.
+that does not tie a user to an EJB container. (See
+xref:integration/jms/receiving.adoc#jms-receiving-async[Asynchronous Receipt: Message-Driven POJOs]
+for detailed coverage of Spring's MDP support.) Endpoint methods can be annotated with
+`@JmsListener` -- see xref:integration/jms/annotated.adoc[Annotation-driven Listener Endpoints]
+for more details.

 A message listener container is used to receive messages from a JMS message queue and
 drive the `MessageListener` that is injected into it. The listener container is
-responsible for all threading of message reception and dispatches into the listener for
+responsible for all threading of message receipt and dispatches into the listener for
 processing. A message listener container is the intermediary between an MDP and a
 messaging provider and takes care of registering to receive messages, participating in
 transactions, resource acquisition and release, exception conversion, and so on. This
@@ -227,7 +229,7 @@ the JMS provider, advanced functionality (such as participation in externally ma
 transactions), and compatibility with Jakarta EE environments.

 You can customize the cache level of the container. Note that, when no caching is enabled,
-a new connection and a new session is created for each message reception. Combining this
+a new connection and a new session is created for each message receipt. Combining this
 with a non-durable subscription with high loads may lead to message loss. Make sure to
 use a proper cache level in such a case.

@@ -246,7 +248,7 @@ in the form of a business entity existence check or a protocol table check.
 Any such arrangements are significantly more efficient than the alternative:
 wrapping your entire processing with an XA transaction (through configuring your
 `DefaultMessageListenerContainer` with an `JtaTransactionManager`) to cover the
-reception of the JMS message as well as the execution of the business logic in your
+receipt of the JMS message as well as the execution of the business logic in your
 message listener (including database operations, etc.).

 IMPORTANT: The default `AUTO_ACKNOWLEDGE` mode does not provide proper reliability guarantees.
@@ -37,7 +37,7 @@ As outlined xref:integration/observability.adoc[at the beginning of this section
 |Processing time for an execution of a `@Scheduled` task
 |===

-NOTE: Observations are using Micrometer's official naming convention, but Metrics names will be automatically converted
+NOTE: Observations use Micrometer's official naming convention, but Metrics names will be automatically converted
 {micrometer-docs}/concepts/naming.html[to the format preferred by the monitoring system backend]
 (Prometheus, Atlas, Graphite, InfluxDB...).

@@ -97,7 +97,7 @@ This can be done by declaring a `SchedulingConfigurer` bean that sets the observ

 include-code::./ObservationSchedulingConfigurer[]

-It is using the `org.springframework.scheduling.support.DefaultScheduledTaskObservationConvention` by default, backed by the `ScheduledTaskObservationContext`.
+It uses the `org.springframework.scheduling.support.DefaultScheduledTaskObservationConvention` by default, backed by the `ScheduledTaskObservationContext`.
 You can configure a custom implementation on the `ObservationRegistry` directly.
 During the execution of the scheduled method, the current observation is restored in the `ThreadLocal` context or the Reactor context (if the scheduled method returns a `Mono` or `Flux` type).

@@ -107,7 +107,7 @@ By default, the following `KeyValues` are created:
 [cols="a,a"]
 |===
 |Name | Description
-|`code.function` _(required)_|Name of Java `Method` that is scheduled for execution.
+|`code.function` _(required)_|Name of the Java `Method` that is scheduled for execution.
 |`code.namespace` _(required)_|Canonical name of the class of the bean instance that holds the scheduled method, or `"ANONYMOUS"` for anonymous classes.
 |`error` _(required)_|Class name of the exception thrown during the execution, or `"none"` if no exception happened.
 |`exception` _(deprecated)_|Duplicates the `error` key and might be removed in the future.
@@ -126,7 +126,7 @@ This instrumentation will create 2 types of observations:
 * `"jms.message.publish"` when a JMS message is sent to the broker, typically with `JmsTemplate`.
 * `"jms.message.process"` when a JMS message is processed by the application, typically with a `MessageListener` or a `@JmsListener` annotated method.

-NOTE: currently there is no instrumentation for `"jms.message.receive"` observations as there is little value in measuring the time spent waiting for the reception of a message.
+NOTE: Currently there is no instrumentation for `"jms.message.receive"` observations as there is little value in measuring the time spent waiting for the receipt of a message.
 Such an integration would typically instrument `MessageConsumer#receive` method calls. But once those return, the processing time is not measured and the trace scope cannot be propagated to the application.

 By default, both observations share the same set of possible `KeyValues`:
@@ -138,7 +138,7 @@ By default, both observations share the same set of possible `KeyValues`:
 |`error` |Class name of the exception thrown during the messaging operation (or "none").
 |`exception` _(deprecated)_|Duplicates the `error` key and might be removed in the future.
 |`messaging.destination.temporary` _(required)_|Whether the destination is a `TemporaryQueue` or `TemporaryTopic` (values: `"true"` or `"false"`).
-|`messaging.operation` _(required)_|Name of JMS operation being performed (values: `"publish"` or `"process"`).
+|`messaging.operation` _(required)_|Name of the JMS operation being performed (values: `"publish"` or `"process"`).
 |===

 .High cardinality Keys
@@ -146,7 +146,7 @@ By default, both observations share the same set of possible `KeyValues`:
 |===
 |Name | Description
 |`messaging.message.conversation_id` |The correlation ID of the JMS message.
-|`messaging.destination.name` |The name of destination the current message was sent to.
+|`messaging.destination.name` |The name of the destination the current message was sent to.
 |`messaging.message.id` |Value used by the messaging system as an identifier for the message.
 |===

@@ -213,7 +213,7 @@ By default, the following `KeyValues` are created:
 |Name | Description
 |`error` _(required)_|Class name of the exception thrown during the exchange, or `"none"` if no exception happened.
 |`exception` _(deprecated)_|Duplicates the `error` key and might be removed in the future.
-|`method` _(required)_|Name of HTTP request method or `"none"` if not a well-known method.
+|`method` _(required)_|Name of the HTTP request method or `"none"` if not a well-known method.
 |`outcome` _(required)_|Outcome of the HTTP server exchange.
 |`status` _(required)_|HTTP response raw status code, or `"UNKNOWN"` if no response was created.
 |`uri` _(required)_|URI pattern for the matching handler if available, falling back to `REDIRECTION` for 3xx responses, `NOT_FOUND` for 404 responses, `root` for requests with no path info, and `UNKNOWN` for all other requests.
@@ -235,10 +235,10 @@ This can be done on the `WebHttpHandlerBuilder`, as follows:

 include-code::./HttpHandlerConfiguration[]

-It is using the `org.springframework.http.server.reactive.observation.DefaultServerRequestObservationConvention` by default, backed by the `ServerRequestObservationContext`.
+It uses the `org.springframework.http.server.reactive.observation.DefaultServerRequestObservationConvention` by default, backed by the `ServerRequestObservationContext`.

 This will only record an observation as an error if the `Exception` has not been handled by an application Controller.
-Typically, all exceptions handled by Spring WebFlux's `@ExceptionHandler` and <<web.adoc#webflux-ann-rest-exceptions,`ProblemDetail` support>> will not be recorded with the observation.
+Typically, all exceptions handled by Spring WebFlux's `@ExceptionHandler` and xref:web/webflux/ann-rest-exceptions.adoc[`ProblemDetail` support] will not be recorded with the observation.
 You can, at any point during request processing, set the error field on the `ObservationContext` yourself:

 include-code::./UserController[]
@@ -251,7 +251,7 @@ By default, the following `KeyValues` are created:
 |Name | Description
 |`error` _(required)_|Class name of the exception thrown during the exchange, or `"none"` if no exception happened.
 |`exception` _(deprecated)_|Duplicates the `error` key and might be removed in the future.
-|`method` _(required)_|Name of HTTP request method or `"none"` if not a well-known method.
+|`method` _(required)_|Name of the HTTP request method or `"none"` if not a well-known method.
 |`outcome` _(required)_|Outcome of the HTTP server exchange.
 |`status` _(required)_|HTTP response raw status code, or `"UNKNOWN"` if no response was created.
 |`uri` _(required)_|URI pattern for the matching handler if available, falling back to `REDIRECTION` for 3xx responses, `NOT_FOUND` for 404 responses, `root` for requests with no path info, and `UNKNOWN` for all other requests.
@@ -270,6 +270,7 @@ By default, the following `KeyValues` are created:
 == HTTP Client Instrumentation

 HTTP client exchange observations are created with the name `"http.client.requests"` for blocking and reactive clients.
+This observation measures the entire HTTP request/response exchange, from connection establishment up to body deserialization.
 Unlike their server counterparts, the instrumentation is implemented directly in the client so the only required step is to configure an `ObservationRegistry` on the client.

 [[observability.http-client.resttemplate]]
@@ -284,8 +285,8 @@ Instrumentation uses the `org.springframework.http.client.observation.ClientRequ
 [cols="a,a"]
 |===
 |Name | Description
-|`method` _(required)_|Name of HTTP request method or `"none"` if not a well-known method.
-|`uri` _(required)_|URI template used for HTTP request, or `"none"` if none was provided. Only the path part of the URI is considered.
+|`method` _(required)_|Name of the HTTP request method or `"none"` if not a well-known method.
+|`uri` _(required)_|URI template used for HTTP request, or `"none"` if none was provided. The protocol, host and port part of the URI are not considered.
 |`client.name` _(required)_|Client name derived from the request URI host.
 |`status` _(required)_|HTTP response raw status code, or `"IO_ERROR"` in case of `IOException`, or `"CLIENT_ERROR"` if no response was received.
 |`outcome` _(required)_|Outcome of the HTTP client exchange.
@@ -312,8 +313,8 @@ Instrumentation uses the `org.springframework.http.client.observation.ClientRequ
 [cols="a,a"]
 |===
 |Name | Description
-|`method` _(required)_|Name of HTTP request method or `"none"` if the request could not be created.
-|`uri` _(required)_|URI template used for HTTP request, or `"none"` if none was provided. Only the path part of the URI is considered.
+|`method` _(required)_|Name of the HTTP request method or `"none"` if the request could not be created.
+|`uri` _(required)_|URI template used for HTTP request, or `"none"` if none was provided. The protocol, host and port part of the URI are not considered.
 |`client.name` _(required)_|Client name derived from the request URI host.
 |`status` _(required)_|HTTP response raw status code, or `"IO_ERROR"` in case of `IOException`, or `"CLIENT_ERROR"` if no response was received.
 |`outcome` _(required)_|Outcome of the HTTP client exchange.
@@ -332,7 +333,7 @@ Instrumentation uses the `org.springframework.http.client.observation.ClientRequ
 [[observability.http-client.webclient]]
 === WebClient

-Applications must configure an `ObservationRegistry` on the `WebClient` builder to enable the instrumentation; without that, observations are "no-ops".
+Applications must configure an `ObservationRegistry` on the `WebClient.Builder` to enable the instrumentation; without that, observations are "no-ops".
 Spring Boot will auto-configure `WebClient.Builder` beans with the observation registry already set.

 Instrumentation uses the `org.springframework.web.reactive.function.client.ClientRequestObservationConvention` by default, backed by the `ClientRequestObservationContext`.
@@ -341,8 +342,8 @@ Instrumentation uses the `org.springframework.web.reactive.function.client.Clien
 [cols="a,a"]
 |===
 |Name | Description
-|`method` _(required)_|Name of HTTP request method or `"none"` if not a well-known method.
-|`uri` _(required)_|URI template used for HTTP request, or `"none"` if none was provided. Only the path part of the URI is considered.
+|`method` _(required)_|Name of the HTTP request method or `"none"` if not a well-known method.
+|`uri` _(required)_|URI template used for HTTP request, or `"none"` if none was provided. The protocol, host and port part of the URI are not considered.
 |`client.name` _(required)_|Client name derived from the request URI host.
 |`status` _(required)_|HTTP response raw status code, or `"IO_ERROR"` in case of `IOException`, or `"CLIENT_ERROR"` if no response was received.
 |`outcome` _(required)_|Outcome of the HTTP client exchange.
@@ -30,36 +30,36 @@ Java::
 +
 [source,java,indent=0,subs="verbatim"]
 ----
-RestClient defaultClient = RestClient.create();
-
-RestClient customClient = RestClient.builder()
-  .requestFactory(new HttpComponentsClientHttpRequestFactory())
-  .messageConverters(converters -> converters.add(new MyCustomMessageConverter()))
-  .baseUrl("https://example.com")
-  .defaultUriVariables(Map.of("variable", "foo"))
-  .defaultHeader("My-Header", "Foo")
-  .defaultCookie("My-Cookie", "Bar")
-  .requestInterceptor(myCustomInterceptor)
-  .requestInitializer(myCustomInitializer)
-  .build();
+	RestClient defaultClient = RestClient.create();
+	
+	RestClient customClient = RestClient.builder()
+		.requestFactory(new HttpComponentsClientHttpRequestFactory())
+		.messageConverters(converters -> converters.add(new MyCustomMessageConverter()))
+		.baseUrl("https://example.com")
+		.defaultUriVariables(Map.of("variable", "foo"))
+		.defaultHeader("My-Header", "Foo")
+		.defaultCookie("My-Cookie", "Bar")
+		.requestInterceptor(myCustomInterceptor)
+		.requestInitializer(myCustomInitializer)
+		.build();
 ----

 Kotlin::
 +
 [source,kotlin,indent=0,subs="verbatim"]
 ----
-val defaultClient = RestClient.create()
-
-val customClient = RestClient.builder()
-  .requestFactory(HttpComponentsClientHttpRequestFactory())
-  .messageConverters { converters -> converters.add(MyCustomMessageConverter()) }
-  .baseUrl("https://example.com")
-  .defaultUriVariables(mapOf("variable" to "foo"))
-  .defaultHeader("My-Header", "Foo")
-  .defaultCookie("My-Cookie", "Bar")
-  .requestInterceptor(myCustomInterceptor)
-  .requestInitializer(myCustomInitializer)
-  .build()
+	val defaultClient = RestClient.create()
+	
+	val customClient = RestClient.builder()
+		.requestFactory(HttpComponentsClientHttpRequestFactory())
+		.messageConverters { converters -> converters.add(MyCustomMessageConverter()) }
+		.baseUrl("https://example.com")
+		.defaultUriVariables(mapOf("variable" to "foo"))
+		.defaultHeader("My-Header", "Foo")
+		.defaultCookie("My-Cookie", "Bar")
+		.requestInterceptor(myCustomInterceptor)
+		.requestInitializer(myCustomInitializer)
+		.build()
 ----
 ======

@@ -81,20 +81,20 @@ Java::
 +
 [source,java,indent=0,subs="verbatim,quotes"]
 ----
-int id = 42;
-restClient.get()
-  .uri("https://example.com/orders/{id}", id)
-  ....
+	int id = 42;
+	restClient.get()
+		.uri("https://example.com/orders/{id}", id)
+		// ...
 ----

 Kotlin::
 +
 [source,kotlin,indent=0,subs="verbatim,quotes"]
 ----
-val id = 42
-restClient.get()
-  .uri("https://example.com/orders/{id}", id)
-  ...
+	val id = 42
+	restClient.get()
+		.uri("https://example.com/orders/{id}", id)
+		// ...
 ----
 ======

@@ -115,11 +115,15 @@ Finally, the body can be set to a callback function that writes to an `OutputStr

 ==== Retrieving the response

-Once the request has been set up, the HTTP response is accessed by invoking `retrieve()`.
-The response body can be accessed by using `body(Class)` or `body(ParameterizedTypeReference)` for parameterized types like lists.
+Once the request has been set up, it can be sent by chaining method calls after `retrieve()`.
+For example, the response body can be accessed by using `retrieve().body(Class)` or `retrieve().body(ParameterizedTypeReference)` for parameterized types like lists.
 The `body` method converts the response contents into various types – for instance, bytes can be converted into a `String`, JSON can be converted into objects using Jackson, and so on (see <<rest-message-conversion>>).

-The response can also be converted into a `ResponseEntity`, giving access to the response headers as well as the body.
+The response can also be converted into a `ResponseEntity`, giving access to the response headers as well as the body, with `retrieve().toEntity(Class)`
+
+NOTE: Calling `retrieve()` by itself is a no-op and returns a `ResponseSpec`.
+Applications must invoke a terminal operation on the `ResponseSpec` to have any side effect.
+If consuming the response has no interest for your use case, you can use `retrieve().toBodilessEntity()`.

 This sample shows how `RestClient` can be used to perform a simple `GET` request.

@@ -129,12 +133,12 @@ Java::
 +
 [source,java,indent=0,subs="verbatim,quotes"]
 ----
-String result = restClient.get() <1>
-  .uri("https://example.com") <2>
-  .retrieve() <3>
-  .body(String.class); <4>
-
-System.out.println(result); <5>
+	String result = restClient.get() <1>
+		.uri("https://example.com") <2>
+		.retrieve() <3>
+		.body(String.class); <4>
+	
+	System.out.println(result); <5>
 ----
 <1> Set up a GET request
 <2> Specify the URL to connect to
@@ -146,12 +150,12 @@ Kotlin::
 +
 [source,kotlin,indent=0,subs="verbatim,quotes"]
 ----
-val result= restClient.get() <1>
-  .uri("https://example.com") <2>
-  .retrieve() <3>
-  .body<String>() <4>
-
-println(result) <5>
+	val result= restClient.get() <1>
+		.uri("https://example.com") <2>
+		.retrieve() <3>
+		.body<String>() <4>
+	
+	println(result) <5>
 ----
 <1> Set up a GET request
 <2> Specify the URL to connect to
@@ -168,14 +172,14 @@ Java::
 +
 [source,java,indent=0,subs="verbatim,quotes"]
 ----
-ResponseEntity<String> result = restClient.get() <1>
-  .uri("https://example.com") <1>
-  .retrieve()
-  .toEntity(String.class); <2>
-
-System.out.println("Response status: " + result.getStatusCode()); <3>
-System.out.println("Response headers: " + result.getHeaders()); <3>
-System.out.println("Contents: " + result.getBody()); <3>
+	ResponseEntity<String> result = restClient.get() <1>
+		.uri("https://example.com") <1>
+		.retrieve()
+		.toEntity(String.class); <2>
+	
+	System.out.println("Response status: " + result.getStatusCode()); <3>
+	System.out.println("Response headers: " + result.getHeaders()); <3>
+	System.out.println("Contents: " + result.getBody()); <3>
 ----
 <1> Set up a GET request for the specified URL
 <2> Convert the response into a `ResponseEntity`
@@ -185,14 +189,14 @@ Kotlin::
 +
 [source,kotlin,indent=0,subs="verbatim,quotes"]
 ----
-val result = restClient.get() <1>
-  .uri("https://example.com") <1>
-  .retrieve()
-  .toEntity<String>() <2>
-
-println("Response status: " + result.statusCode) <3>
-println("Response headers: " + result.headers) <3>
-println("Contents: " + result.body) <3>
+	val result = restClient.get() <1>
+		.uri("https://example.com") <1>
+		.retrieve()
+		.toEntity<String>() <2>
+	
+	println("Response status: " + result.statusCode) <3>
+	println("Response headers: " + result.headers) <3>
+	println("Contents: " + result.body) <3>
 ----
 <1> Set up a GET request for the specified URL
 <2> Convert the response into a `ResponseEntity`
@@ -208,12 +212,12 @@ Java::
 +
 [source,java,indent=0,subs="verbatim,quotes"]
 ----
-int id = ...;
-Pet pet = restClient.get()
-  .uri("https://petclinic.example.com/pets/{id}", id) <1>
-  .accept(APPLICATION_JSON) <2>
-  .retrieve()
-  .body(Pet.class); <3>
+	int id = ...;
+	Pet pet = restClient.get()
+		.uri("https://petclinic.example.com/pets/{id}", id) <1>
+		.accept(APPLICATION_JSON) <2>
+		.retrieve()
+		.body(Pet.class); <3>
 ----
 <1> Using URI variables
 <2> Set the `Accept` header to `application/json`
@@ -223,12 +227,12 @@ Kotlin::
 +
 [source,kotlin,indent=0,subs="verbatim,quotes"]
 ----
-val id = ...
-val pet = restClient.get()
-  .uri("https://petclinic.example.com/pets/{id}", id) <1>
-  .accept(APPLICATION_JSON) <2>
-  .retrieve()
-  .body<Pet>() <3>
+	val id = ...
+	val pet = restClient.get()
+		.uri("https://petclinic.example.com/pets/{id}", id) <1>
+		.accept(APPLICATION_JSON) <2>
+		.retrieve()
+		.body<Pet>() <3>
 ----
 <1> Using URI variables
 <2> Set the `Accept` header to `application/json`
@@ -243,13 +247,13 @@ Java::
 +
 [source,java,indent=0,subs="verbatim,quotes"]
 ----
-Pet pet = ... <1>
-ResponseEntity<Void> response = restClient.post() <2>
-  .uri("https://petclinic.example.com/pets/new") <2>
-  .contentType(APPLICATION_JSON) <3>
-  .body(pet) <4>
-  .retrieve()
-  .toBodilessEntity(); <5>
+	Pet pet = ... <1>
+	ResponseEntity<Void> response = restClient.post() <2>
+		.uri("https://petclinic.example.com/pets/new") <2>
+		.contentType(APPLICATION_JSON) <3>
+		.body(pet) <4>
+		.retrieve()
+		.toBodilessEntity(); <5>
 ----
 <1> Create a `Pet` domain object
 <2> Set up a POST request, and the URL to connect to
@@ -261,13 +265,13 @@ Kotlin::
 +
 [source,kotlin,indent=0,subs="verbatim,quotes"]
 ----
-val pet: Pet = ... <1>
-val response = restClient.post() <2>
-  .uri("https://petclinic.example.com/pets/new") <2>
-  .contentType(APPLICATION_JSON) <3>
-  .body(pet) <4>
-  .retrieve()
-  .toBodilessEntity() <5>
+	val pet: Pet = ... <1>
+	val response = restClient.post() <2>
+		.uri("https://petclinic.example.com/pets/new") <2>
+		.contentType(APPLICATION_JSON) <3>
+		.body(pet) <4>
+		.retrieve()
+		.toBodilessEntity() <5>
 ----
 <1> Create a `Pet` domain object
 <2> Set up a POST request, and the URL to connect to
@@ -287,13 +291,13 @@ Java::
 +
 [source,java,indent=0,subs="verbatim,quotes"]
 ----
-String result = restClient.get() <1>
-  .uri("https://example.com/this-url-does-not-exist") <1>
-  .retrieve()
-  .onStatus(HttpStatusCode::is4xxClientError, (request, response) -> { <2>
-      throw new MyCustomRuntimeException(response.getStatusCode(), response.getHeaders()); <3>
-  })
-  .body(String.class);
+	String result = restClient.get() <1>
+		.uri("https://example.com/this-url-does-not-exist") <1>
+		.retrieve()
+		.onStatus(HttpStatusCode::is4xxClientError, (request, response) -> { <2>
+			throw new MyCustomRuntimeException(response.getStatusCode(), response.getHeaders()); <3>
+		})
+		.body(String.class);
 ----
 <1> Create a GET request for a URL that returns a 404 status code
 <2> Set up a status handler for all 4xx status codes
@@ -303,12 +307,12 @@ Kotlin::
 +
 [source,kotlin,indent=0,subs="verbatim,quotes"]
 ----
-val result = restClient.get() <1>
-  .uri("https://example.com/this-url-does-not-exist") <1>
-  .retrieve()
-  .onStatus(HttpStatusCode::is4xxClientError) { _, response -> <2>
-    throw MyCustomRuntimeException(response.getStatusCode(), response.getHeaders()) } <3>
-  .body<String>()
+	val result = restClient.get() <1>
+		.uri("https://example.com/this-url-does-not-exist") <1>
+		.retrieve()
+		.onStatus(HttpStatusCode::is4xxClientError) { _, response -> <2>
+			throw MyCustomRuntimeException(response.getStatusCode(), response.getHeaders()) } <3>
+		.body<String>()
 ----
 <1> Create a GET request for a URL that returns a 404 status code
 <2> Set up a status handler for all 4xx status codes
@@ -326,18 +330,18 @@ Java::
 +
 [source,java,indent=0,subs="verbatim,quotes"]
 ----
-Pet result = restClient.get()
-  .uri("https://petclinic.example.com/pets/{id}", id)
-  .accept(APPLICATION_JSON)
-  .exchange((request, response) -> { <1>
-    if (response.getStatusCode().is4xxClientError()) { <2>
-      throw new MyCustomRuntimeException(response.getStatusCode(), response.getHeaders()); <2>
-    }
-    else {
-      Pet pet = convertResponse(response); <3>
-      return pet;
-    }
-  });
+	Pet result = restClient.get()
+		.uri("https://petclinic.example.com/pets/{id}", id)
+		.accept(APPLICATION_JSON)
+		.exchange((request, response) -> { <1>
+			if (response.getStatusCode().is4xxClientError()) { <2>
+				throw new MyCustomRuntimeException(response.getStatusCode(), response.getHeaders()); <2>
+			}
+			else {
+				Pet pet = convertResponse(response); <3>
+				return pet;
+			}
+		});
 ----
 <1> `exchange` provides the request and response
 <2> Throw an exception when the response has a 4xx status code
@@ -347,17 +351,17 @@ Kotlin::
 +
 [source,kotlin,indent=0,subs="verbatim,quotes"]
 ----
-val result = restClient.get()
-  .uri("https://petclinic.example.com/pets/{id}", id)
-  .accept(MediaType.APPLICATION_JSON)
-  .exchange { request, response -> <1>
-    if (response.getStatusCode().is4xxClientError()) { <2>
-      throw MyCustomRuntimeException(response.getStatusCode(), response.getHeaders()) <2>
-    } else {
-      val pet: Pet = convertResponse(response) <3>
-      pet
-    }
-  }
+	val result = restClient.get()
+		.uri("https://petclinic.example.com/pets/{id}", id)
+		.accept(MediaType.APPLICATION_JSON)
+		.exchange { request, response -> <1>
+			if (response.getStatusCode().is4xxClientError()) { <2>
+				throw MyCustomRuntimeException(response.getStatusCode(), response.getHeaders()) <2>
+			} else {
+				val pet: Pet = convertResponse(response) <3>
+				pet
+			}
+		}
 ----
 <1> `exchange` provides the request and response
 <2> Throw an exception when the response has a 4xx status code
@@ -376,15 +380,14 @@ To serialize only a subset of the object properties, you can specify a {baeldung

 [source,java,indent=0,subs="verbatim"]
 ----
-MappingJacksonValue value = new MappingJacksonValue(new User("eric", "7!jd#h23"));
-value.setSerializationView(User.WithoutPasswordView.class);
-
-ResponseEntity<Void> response = restClient.post() // or RestTemplate.postForEntity
-  .contentType(APPLICATION_JSON)
-  .body(value)
-  .retrieve()
-  .toBodilessEntity();
-
+	MappingJacksonValue value = new MappingJacksonValue(new User("eric", "7!jd#h23"));
+	value.setSerializationView(User.WithoutPasswordView.class);
+	
+	ResponseEntity<Void> response = restClient.post() // or RestTemplate.postForEntity
+		.contentType(APPLICATION_JSON)
+		.body(value)
+		.retrieve()
+		.toBodilessEntity();
 ----

 ==== Multipart
@@ -394,24 +397,24 @@ For example:

 [source,java,indent=0,subs="verbatim"]
 ----
-MultiValueMap<String, Object> parts = new LinkedMultiValueMap<>();
-
-parts.add("fieldPart", "fieldValue");
-parts.add("filePart", new FileSystemResource("...logo.png"));
-parts.add("jsonPart", new Person("Jason"));
-
-HttpHeaders headers = new HttpHeaders();
-headers.setContentType(MediaType.APPLICATION_XML);
-parts.add("xmlPart", new HttpEntity<>(myBean, headers));
-
-// send using RestClient.post or RestTemplate.postForEntity
+	MultiValueMap<String, Object> parts = new LinkedMultiValueMap<>();
+	
+	parts.add("fieldPart", "fieldValue");
+	parts.add("filePart", new FileSystemResource("...logo.png"));
+	parts.add("jsonPart", new Person("Jason"));
+	
+	HttpHeaders headers = new HttpHeaders();
+	headers.setContentType(MediaType.APPLICATION_XML);
+	parts.add("xmlPart", new HttpEntity<>(myBean, headers));
+	
+	// send using RestClient.post or RestTemplate.postForEntity
 ----

 In most cases, you do not have to specify the `Content-Type` for each part.
 The content type is determined automatically based on the `HttpMessageConverter` chosen to serialize it or, in the case of a `Resource`, based on the file extension.
 If necessary, you can explicitly provide the `MediaType` with an `HttpEntity` wrapper.

-Once the `MultiValueMap` is ready, you can use it as the body of a `POST` request, using  `RestClient.post().body(parts)` (or `RestTemplate.postForObject`).
+Once the `MultiValueMap` is ready, you can use it as the body of a `POST` request, using `RestClient.post().body(parts)` (or `RestTemplate.postForObject`).

 If the `MultiValueMap` contains at least one non-`String` value, the `Content-Type` is set to `multipart/form-data` by the `FormHttpMessageConverter`.
 If the `MultiValueMap` has `String` values, the `Content-Type` defaults to `application/x-www-form-urlencoded`.
@@ -853,7 +856,7 @@ Start by creating the interface with `@HttpExchange` methods:

 [source,java,indent=0,subs="verbatim,quotes"]
 ----
-	interface RepositoryService {
+	public interface RepositoryService {

 		@GetExchange("/repos/{owner}/{repo}")
 		Repository getRepository(@PathVariable String owner, @PathVariable String repo);
@@ -904,7 +907,7 @@ For `RestTemplate`:
 [source,java,indent=0,subs="verbatim,quotes"]
 ----
 	@HttpExchange(url = "/repos/{owner}/{repo}", accept = "application/vnd.github.v3+json")
-	interface RepositoryService {
+	public interface RepositoryService {

 		@GetExchange
 		Repository getRepository(@PathVariable String owner, @PathVariable String repo);
@@ -938,10 +941,10 @@ method parameters:
 | Dynamically set the HTTP method for the request, overriding the annotation's `method` attribute

 | `@RequestHeader`
-| Add a request header or multiple headers. The argument may be a `Map<String, ?>` or
-  `MultiValueMap<String, ?>` with multiple headers, a `Collection<?>` of values, or an
-  individual value. Type conversion is supported for non-String values. This overrides
-  the annotation's `headers` attribute.
+| Add a request header or multiple headers. The argument may be a single value,
+  a `Collection<?>` of values, `Map<String, ?>`,`MultiValueMap<String, ?>`.
+  Type conversion is supported for non-String values. Header values are added and
+  do not override already added header values.

 | `@PathVariable`
 | Add a variable for expand a placeholder in the request URL. The argument may be a
@@ -988,6 +991,27 @@ parameter annotation) is set to `false`, or the parameter is marked optional as



+[[rest-http-interface.custom-resolver]]
+=== Custom argument resolver
+
+For more complex cases, HTTP interfaces do not support `RequestEntity` types as method parameters.
+This would take over the entire HTTP request and not improve the semantics of the interface.
+Instead of adding many method parameters, developers can combine them into a custom type
+and configure a dedicated `HttpServiceArgumentResolver` implementation.
+
+In the following HTTP interface, we are using a custom `Search` type as a parameter:
+
+include-code::./CustomHttpServiceArgumentResolver[tag=httpinterface,indent=0]
+
+We can implement our own `HttpServiceArgumentResolver` that supports our custom `Search` type
+and writes its data in the outgoing HTTP request.
+
+include-code::./CustomHttpServiceArgumentResolver[tag=argumentresolver,indent=0]
+
+Finally, we can use this argument resolver during the setup and use our HTTP interface.
+
+include-code::./CustomHttpServiceArgumentResolver[tag=usage,indent=0]
+
 [[rest-http-interface-return-values]]
 === Return Values

@@ -1112,11 +1136,11 @@ performed through the client:

 [source,java,indent=0,subs="verbatim,quotes"]
 ----
-    RestTemplate restTemplate = new RestTemplate();
-    restTemplate.setErrorHandler(myErrorHandler);
-
-    RestTemplateAdapter adapter = RestTemplateAdapter.create(restTemplate);
-    HttpServiceProxyFactory factory = HttpServiceProxyFactory.builderFor(adapter).build();
+	RestTemplate restTemplate = new RestTemplate();
+	restTemplate.setErrorHandler(myErrorHandler);
+	
+	RestTemplateAdapter adapter = RestTemplateAdapter.create(restTemplate);
+	HttpServiceProxyFactory factory = HttpServiceProxyFactory.builderFor(adapter).build();
 ----

 For more details and options, see the Javadoc of `setErrorHandler` in `RestTemplate` and
@@ -14,16 +14,13 @@ For example, `@Autowired lateinit var thing: Thing` implies that a bean
 of type `Thing` must be registered in the application context, while `@Autowired lateinit var thing: Thing?`
 does not raise an error if such a bean does not exist.

-Following the same principle, `@Bean fun play(toy: Toy, car: Car?) = Baz(toy, Car)` implies
+Following the same principle, `@Bean fun play(toy: Toy, car: Car?) = Baz(toy, car)` implies
 that a bean of type `Toy` must be registered in the application context, while a bean of
 type `Car` may or may not exist. The same behavior applies to autowired constructor parameters.

 NOTE: If you use bean validation on classes with properties or a primary constructor
-parameters, you may need to use
+with parameters, you may need to use
 {kotlin-docs}/annotations.html#annotation-use-site-targets[annotation use-site targets],
 such as `@field:NotNull` or `@get:Size(min=5, max=15)`, as described in
 {stackoverflow-site}/a/35853200/1092077[this Stack Overflow response].

-
-
-
@@ -215,45 +215,43 @@ For suspending functions, a `TransactionalOperator.executeAndAwait` extension is

 [source,kotlin,indent=0]
 ----
-    import org.springframework.transaction.reactive.executeAndAwait
+	import org.springframework.transaction.reactive.executeAndAwait

-    class PersonRepository(private val operator: TransactionalOperator) {
+	class PersonRepository(private val operator: TransactionalOperator) {

-        suspend fun initDatabase() = operator.executeAndAwait {
-            insertPerson1()
-            insertPerson2()
-        }
+		suspend fun initDatabase() = operator.executeAndAwait {
+			insertPerson1()
+			insertPerson2()
+		}

-        private suspend fun insertPerson1() {
-            // INSERT SQL statement
-        }
+		private suspend fun insertPerson1() {
+			// INSERT SQL statement
+		}

-        private suspend fun insertPerson2() {
-            // INSERT SQL statement
-        }
-    }
+		private suspend fun insertPerson2() {
+			// INSERT SQL statement
+		}
+	}
 ----

 For Kotlin `Flow`, a  `Flow<T>.transactional` extension is provided.

 [source,kotlin,indent=0]
 ----
-    import org.springframework.transaction.reactive.transactional
+	import org.springframework.transaction.reactive.transactional

-    class PersonRepository(private val operator: TransactionalOperator) {
+	class PersonRepository(private val operator: TransactionalOperator) {

-        fun updatePeople() = findPeople().map(::updatePerson).transactional(operator)
+		fun updatePeople() = findPeople().map(::updatePerson).transactional(operator)

-        private fun findPeople(): Flow<Person> {
-            // SELECT SQL statement
-        }
+		private fun findPeople(): Flow<Person> {
+			// SELECT SQL statement
+		}

-        private suspend fun updatePerson(person: Person): Person {
-            // UPDATE SQL statement
-        }
-    }
+		private suspend fun updatePerson(person: Person): Person {
+			// UPDATE SQL statement
+		}
+	}
 ----


-
-
@@ -190,7 +190,7 @@ NOTE: If you use Spring Boot, you should probably use
 instead of `@Value` annotations.

 As an alternative, you can customize the property placeholder prefix by declaring the
-following configuration beans:
+following `PropertySourcesPlaceholderConfigurer` bean:

 [source,kotlin,indent=0]
 ----
@@ -200,8 +200,10 @@ following configuration beans:
 	}
 ----

-You can customize existing code (such as Spring Boot actuators or `@LocalServerPort`)
-that uses the `${...}` syntax, with configuration beans, as the following example shows:
+You can support components (such as Spring Boot actuators or `@LocalServerPort`) that use
+the standard `${...}` syntax alongside components that use the custom `%{...}` syntax by
+declaring multiple `PropertySourcesPlaceholderConfigurer` beans, as the following example
+shows:

 [source,kotlin,indent=0]
 ----
@@ -215,6 +217,9 @@ that uses the `${...}` syntax, with configuration beans, as the following exampl
 	fun defaultPropertyConfigurer() = PropertySourcesPlaceholderConfigurer()
 ----

+In addition, the default escape character can be changed or disabled globally by setting
+the `spring.placeholder.escapeCharacter.default` property via a JVM system property (or
+via the xref:appendix.adoc#appendix-spring-properties[`SpringProperties`] mechanism).


 [[checked-exceptions]]
@@ -296,17 +301,17 @@ for example when writing a `org.springframework.core.convert.converter.Converter

 [source,kotlin,indent=0]
 ----
-class ListOfFooConverter : Converter<List<Foo>, CustomJavaList<out Foo>> {
-    // ...
-}
+	class ListOfFooConverter : Converter<List<Foo>, CustomJavaList<out Foo>> {
+		// ...
+	}
 ----

 When converting any kind of objects, star projection with `*` can be used instead of `out Any`.
 [source,kotlin,indent=0]
 ----
-class ListOfAnyConverter : Converter<List<*>, CustomJavaList<*>> {
-    // ...
-}
+	class ListOfAnyConverter : Converter<List<*>, CustomJavaList<*>> {
+		// ...
+	}
 ----

 NOTE: Spring Framework does not leverage yet declaration-site variance type information for injecting beans,
@@ -340,13 +345,14 @@ file with a `spring.test.constructor.autowire.mode = all` property.

 [source,kotlin,indent=0]
 ----
-@SpringJUnitConfig(TestConfig::class)
-@TestConstructor(autowireMode = AutowireMode.ALL)
-class OrderServiceIntegrationTests(val orderService: OrderService,
-                                   val customerService: CustomerService) {
-
-    // tests that use the injected OrderService and CustomerService
-}
+	@SpringJUnitConfig(TestConfig::class)
+	@TestConstructor(autowireMode = AutowireMode.ALL)
+	class OrderServiceIntegrationTests(
+					val orderService: OrderService,
+					val customerService: CustomerService) {
+	
+		// tests that use the injected OrderService and CustomerService
+	}
 ----


@@ -368,29 +374,29 @@ The following example demonstrates `@BeforeAll` and `@AfterAll` annotations on n
@TestInstance(TestInstance.Lifecycle.PER_CLASS)
 class IntegrationTests {

-  val application = Application(8181)
-  val client = WebClient.create("http://localhost:8181")
+	val application = Application(8181)
+	val client = WebClient.create("http://localhost:8181")

-  @BeforeAll
-  fun beforeAll() {
-    application.start()
-  }
+	@BeforeAll
+	fun beforeAll() {
+		application.start()
+	}

-  @Test
-  fun `Find all users on HTML page`() {
-    client.get().uri("/users")
-        .accept(TEXT_HTML)
-        .retrieve()
-        .bodyToMono<String>()
-        .test()
-        .expectNextMatches { it.contains("Foo") }
-        .verifyComplete()
-  }
+	@Test
+	fun `Find all users on HTML page`() {
+		client.get().uri("/users")
+				.accept(TEXT_HTML)
+				.retrieve()
+				.bodyToMono<String>()
+				.test()
+				.expectNextMatches { it.contains("Foo") }
+				.verifyComplete()
+	}

-  @AfterAll
-  fun afterAll() {
-    application.stop()
-  }
+	@AfterAll
+	fun afterAll() {
+		application.stop()
+	}
 }
 ----

@@ -403,26 +409,27 @@ The following example shows how to do so:

 [source,kotlin,indent=0]
 ----
-class SpecificationLikeTests {
+	class SpecificationLikeTests {
+	
+		@Nested
+		@DisplayName("a calculator")
+		inner class Calculator {

-  @Nested
-  @DisplayName("a calculator")
-  inner class Calculator {
-     val calculator = SampleCalculator()
-
-     @Test
-     fun `should return the result of adding the first number to the second number`() {
-        val sum = calculator.sum(2, 4)
-        assertEquals(6, sum)
-     }
-
-     @Test
-     fun `should return the result of subtracting the second number from the first number`() {
-        val subtract = calculator.subtract(4, 2)
-        assertEquals(2, subtract)
-     }
-  }
-}
+			val calculator = SampleCalculator()
+	
+			@Test
+			fun `should return the result of adding the first number to the second number`() {
+				val sum = calculator.sum(2, 4)
+				assertEquals(6, sum)
+			}
+	
+			@Test
+			fun `should return the result of subtracting the second number from the first number`() {
+				val subtract = calculator.subtract(4, 2)
+				assertEquals(2, subtract)
+			}
+		}
+	}
 ----


@@ -1,8 +1,6 @@
 [[kotlin-web]]
 = Web

-
-
 [[router-dsl]]
 == Router DSL

@@ -16,27 +14,27 @@ These DSL let you write clean and idiomatic Kotlin code to build a `RouterFuncti

 [source,kotlin,indent=0]
 ----
-@Configuration
-class RouterRouterConfiguration {
-
-	@Bean
-	fun mainRouter(userHandler: UserHandler) = router {
-		accept(TEXT_HTML).nest {
-			GET("/") { ok().render("index") }
-			GET("/sse") { ok().render("sse") }
-			GET("/users", userHandler::findAllView)
-		}
-		"/api".nest {
-			accept(APPLICATION_JSON).nest {
-				GET("/users", userHandler::findAll)
+	@Configuration
+	class RouterRouterConfiguration {
+	
+		@Bean
+		fun mainRouter(userHandler: UserHandler) = router {
+			accept(TEXT_HTML).nest {
+				GET("/") { ok().render("index") }
+				GET("/sse") { ok().render("sse") }
+				GET("/users", userHandler::findAllView)
 			}
-			accept(TEXT_EVENT_STREAM).nest {
-				GET("/users", userHandler::stream)
+			"/api".nest {
+				accept(APPLICATION_JSON).nest {
+					GET("/users", userHandler::findAll)
+				}
+				accept(TEXT_EVENT_STREAM).nest {
+					GET("/users", userHandler::stream)
+				}
 			}
+			resources("/**", ClassPathResource("static/"))
 		}
-		resources("/**", ClassPathResource("static/"))
 	}
-}
 ----

 NOTE: This DSL is programmatic, meaning that it allows custom registration logic of beans
@@ -55,22 +53,22 @@ idiomatic Kotlin API and to allow better discoverability (no usage of static met

 [source,kotlin,indent=0]
 ----
-val mockMvc: MockMvc = ...
-mockMvc.get("/person/{name}", "Lee") {
-	secure = true
-	accept = APPLICATION_JSON
-	headers {
-		contentLanguage = Locale.FRANCE
+	val mockMvc: MockMvc = ...
+	mockMvc.get("/person/{name}", "Lee") {
+		secure = true
+		accept = APPLICATION_JSON
+		headers {
+			contentLanguage = Locale.FRANCE
+		}
+		principal = Principal { "foo" }
+	}.andExpect {
+		status { isOk }
+		content { contentType(APPLICATION_JSON) }
+		jsonPath("$.name") { value("Lee") }
+		content { json("""{"someBoolean": false}""", false) }
+	}.andDo {
+		print()
 	}
-	principal = Principal { "foo" }
-}.andExpect {
-	status { isOk }
-	content { contentType(APPLICATION_JSON) }
-	jsonPath("$.name") { value("Lee") }
-	content { json("""{"someBoolean": false}""", false) }
-}.andDo {
-	print()
-}
 ----


@@ -89,9 +87,9 @@ is possible to use such feature to render Kotlin-based templates with
 `build.gradle.kts`
 [source,kotlin,indent=0]
 ----
-dependencies {
-        runtime("org.jetbrains.kotlin:kotlin-scripting-jsr223:${kotlinVersion}")
-}
+	dependencies {
+		runtime("org.jetbrains.kotlin:kotlin-scripting-jsr223:${kotlinVersion}")
+	}
 ----

 Configuration is usually done with `ScriptTemplateConfigurer` and `ScriptTemplateViewResolver` beans.
@@ -99,23 +97,23 @@ Configuration is usually done with `ScriptTemplateConfigurer` and `ScriptTemplat
 `KotlinScriptConfiguration.kt`
 [source,kotlin,indent=0]
 ----
-@Configuration
-class KotlinScriptConfiguration {
-
-    @Bean
-	fun kotlinScriptConfigurer() = ScriptTemplateConfigurer().apply {
-		engineName = "kotlin"
-		setScripts("scripts/render.kts")
-		renderFunction = "render"
-		isSharedEngine = false
+	@Configuration
+	class KotlinScriptConfiguration {
+	
+		@Bean
+		fun kotlinScriptConfigurer() = ScriptTemplateConfigurer().apply {
+			engineName = "kotlin"
+			setScripts("scripts/render.kts")
+			renderFunction = "render"
+			isSharedEngine = false
+		}
+	
+		@Bean
+		fun kotlinScriptViewResolver() = ScriptTemplateViewResolver().apply {
+			setPrefix("templates/")
+			setSuffix(".kts")
+		}
 	}
-
-    @Bean
-    fun kotlinScriptViewResolver() = ScriptTemplateViewResolver().apply {
-        setPrefix("templates/")
-        setSuffix(".kts")
-    }
-}
 ----

 See the https://github.com/sdeleuze/kotlin-script-templating[kotlin-script-templating] example
@@ -127,7 +125,7 @@ project for more details.
 == Kotlin multiplatform serialization

 {kotlin-github-org}/kotlinx.serialization[Kotlin multiplatform serialization] is
-supported in Spring MVC, Spring WebFlux and Spring Messaging (RSocket). The builtin support currently targets CBOR, JSON, and ProtoBuf formats.
+supported in Spring MVC, Spring WebFlux and Spring Messaging (RSocket). The built-in support currently targets CBOR, JSON, and ProtoBuf formats.

 To enable it, follow {kotlin-github-org}/kotlinx.serialization#setup[those instructions] to add the related dependency and plugin.
 With Spring MVC and WebFlux, both Kotlin serialization and Jackson will be configured by default if they are in the classpath since
@@ -135,6 +133,3 @@ Kotlin serialization is designed to serialize only Kotlin classes annotated with
 With Spring Messaging (RSocket), make sure that neither Jackson, GSON or JSONB are in the classpath if you want automatic configuration,
 if Jackson is needed configure `KotlinSerializationJsonMessageConverter` manually.

-
-
-
@@ -2,8 +2,9 @@
 = Spring JUnit 4 Testing Annotations

 The following annotations are supported only when used in conjunction with the
-xref:testing/testcontext-framework/support-classes.adoc#testcontext-junit4-runner[SpringRunner], xref:testing/testcontext-framework/support-classes.adoc#testcontext-junit4-rules[Spring's JUnit 4 rules]
-, or xref:testing/testcontext-framework/support-classes.adoc#testcontext-support-classes-junit4[Spring's JUnit 4 support classes]:
+xref:testing/testcontext-framework/support-classes.adoc#testcontext-junit4-runner[SpringRunner],
+xref:testing/testcontext-framework/support-classes.adoc#testcontext-junit4-rules[Spring's JUnit 4 rules], or
+xref:testing/testcontext-framework/support-classes.adoc#testcontext-support-classes-junit4[Spring's JUnit 4 support classes]:

 * xref:testing/annotations/integration-junit4.adoc#integration-testing-annotations-junit4-ifprofilevalue[`@IfProfileValue`]
 * xref:testing/annotations/integration-junit4.adoc#integration-testing-annotations-junit4-profilevaluesourceconfiguration[`@ProfileValueSourceConfiguration`]
@@ -1,41 +1,77 @@
 [[spring-testing-annotation-beanoverriding-mockitobean]]
 = `@MockitoBean` and `@MockitoSpyBean`

-`@MockitoBean` and `@MockitoSpyBean` are used on fields in test classes to override beans
-in the test's `ApplicationContext` with a Mockito _mock_ or _spy_, respectively. In the
-latter case, an early instance of the original bean is captured and wrapped by the spy.
+{spring-framework-api}/test/context/bean/override/mockito/MockitoBean.html[`@MockitoBean`] and
+{spring-framework-api}/test/context/bean/override/mockito/MockitoSpyBean.html[`@MockitoSpyBean`]
+can be used in test classes to override a bean in the test's `ApplicationContext` with a
+Mockito _mock_ or _spy_, respectively. In the latter case, an early instance of the
+original bean is captured and wrapped by the spy.

-By default, the annotated field's type is used to search for candidate beans to override.
-If multiple candidates match, `@Qualifier` can be provided to narrow the candidate to
-override. Alternatively, a candidate whose bean name matches the name of the field will
-match.
+The annotations can be applied in the following ways.

-When using `@MockitoBean`, a new bean will be created if a corresponding bean does not
-exist. However, if you would like for the test to fail when a corresponding bean does not
-exist, you can set the `enforceOverride` attribute to `true` – for example,
-`@MockitoBean(enforceOverride = true)`.
+* On a non-static field in a test class or any of its superclasses.
+* On a non-static field in an enclosing class for a `@Nested` test class or in any class
+  in the type hierarchy or enclosing class hierarchy above the `@Nested` test class.
+* At the type level on a test class or any superclass or implemented interface in the
+  type hierarchy above the test class.
+* At the type level on an enclosing class for a `@Nested` test class or on any class or
+  interface in the type hierarchy or enclosing class hierarchy above the `@Nested` test
+  class.

-To use a by-name override rather than a by-type override, specify the `name` attribute
-of the annotation.
+When `@MockitoBean` or `@MockitoSpyBean` is declared on a field, the bean to mock or spy
+is inferred from the type of the annotated field. If multiple candidates exist in the
+`ApplicationContext`, a `@Qualifier` annotation can be declared on the field to help
+disambiguate. In the absence of a `@Qualifier` annotation, the name of the annotated
+field will be used as a _fallback qualifier_. Alternatively, you can explicitly specify a
+bean name to mock or spy by setting the `value` or `name` attribute in the annotation.
+
+When `@MockitoBean` or `@MockitoSpyBean` is declared at the type level, the type of bean
+(or beans) to mock or spy must be supplied via the `types` attribute in the annotation –
+for example, `@MockitoBean(types = {OrderService.class, UserService.class})`. If multiple
+candidates exist in the `ApplicationContext`, you can explicitly specify a bean name to
+mock or spy by setting the `name` attribute. Note, however, that the `types` attribute
+must contain a single type if an explicit bean `name` is configured – for example,
+`@MockitoBean(name = "ps1", types = PrintingService.class)`.
+
+To support reuse of mock configuration, `@MockitoBean` and `@MockitoSpyBean` may be used
+as meta-annotations to create custom _composed annotations_ – for example, to define
+common mock or spy configuration in a single annotation that can be reused across a test
+suite. `@MockitoBean` and `@MockitoSpyBean` can also be used as repeatable annotations at
+the type level — for example, to mock or spy several beans by name.

 [WARNING]
 ====
-Qualifiers, including the name of the field, are used to determine if a separate
+Qualifiers, including the name of a field, are used to determine if a separate
 `ApplicationContext` needs to be created. If you are using this feature to mock or spy
-the same bean in several tests, make sure to name the field consistently to avoid
+the same bean in several test classes, make sure to name the fields consistently to avoid
 creating unnecessary contexts.
 ====

-Each annotation also defines Mockito-specific attributes to fine-tune the mocking details.
+[WARNING]
+====
+Using `@MockitoBean` or `@MockitoSpyBean` in conjunction with `@ContextHierarchy` can
+lead to undesirable results since each `@MockitoBean` or `@MockitoSpyBean` will be
+applied to all context hierarchy levels by default. To ensure that a particular
+`@MockitoBean` or `@MockitoSpyBean` is applied to a single context hierarchy level, set
+the `contextName` attribute to match a configured `@ContextConfiguration` name – for
+example, `@MockitoBean(contextName = "app-config")` or
+`@MockitoSpyBean(contextName = "app-config")`.

-By default, the `@MockitoBean` annotation uses the `REPLACE_OR_CREATE`
-xref:testing/testcontext-framework/bean-overriding.adoc#testcontext-bean-overriding-custom[strategy for test bean overriding].
-If no existing bean matches, a new bean is created on the fly. As mentioned previously,
-you can switch to the `REPLACE` strategy by setting the `enforceOverride` attribute to
-`true`.
+See
+xref:testing/testcontext-framework/ctx-management/hierarchies.adoc#testcontext-ctx-management-ctx-hierarchies-with-bean-overrides[context
+hierarchies with bean overrides] for further details and examples.
+====
+
+Each annotation also defines Mockito-specific attributes to fine-tune the mocking behavior.
+
+The `@MockitoBean` annotation uses the `REPLACE_OR_CREATE`
+xref:testing/testcontext-framework/bean-overriding.adoc#testcontext-bean-overriding-strategy[strategy for bean overrides].
+If a corresponding bean does not exist, a new bean will be created. However, you can
+switch to the `REPLACE` strategy by setting the `enforceOverride` attribute to `true` –
+for example, `@MockitoBean(enforceOverride = true)`.

 The `@MockitoSpyBean` annotation uses the `WRAP`
-xref:testing/testcontext-framework/bean-overriding.adoc#testcontext-bean-overriding-custom[strategy],
+xref:testing/testcontext-framework/bean-overriding.adoc#testcontext-bean-overriding-strategy[strategy],
 and the original instance is wrapped in a Mockito spy. This strategy requires that
 exactly one candidate bean exists.

@@ -51,7 +87,20 @@ When using `@MockitoSpyBean` to create a spy for a `FactoryBean`, a spy will be
 for the object created by the `FactoryBean`, not for the `FactoryBean` itself.
 ====

-The following example shows how to use the default behavior of the `@MockitoBean` annotation:
+[NOTE]
+====
+There are no restrictions on the visibility of `@MockitoBean` and `@MockitoSpyBean`
+fields.
+
+Such fields can therefore be `public`, `protected`, package-private (default visibility),
+or `private` depending on the needs or coding practices of the project.
+====
+
+[[spring-testing-annotation-beanoverriding-mockitobean-examples]]
+== `@MockitoBean` Examples
+
+The following example shows how to use the default behavior of the `@MockitoBean`
+annotation.

 [tabs]
 ======
@@ -59,23 +108,26 @@ Java::
 +
 [source,java,indent=0,subs="verbatim,quotes"]
 ----
-	class OverrideBeanTests {
-		@MockitoBean // <1>
-		private CustomService customService;
+	@SpringJUnitConfig(TestConfig.class)
+	class BeanOverrideTests {

-		// test case body...
+		@MockitoBean // <1>
+		CustomService customService;
+
+		// tests...
 	}
 ----
-<1> Replace the bean with type `CustomService` with a Mockito `mock`.
+<1> Replace the bean with type `CustomService` with a Mockito mock.
 ======

 In the example above, we are creating a mock for `CustomService`. If more than one bean
 of that type exists, the bean named `customService` is considered. Otherwise, the test
 will fail, and you will need to provide a qualifier of some sort to identify which of the
-`CustomService` beans you want to override. If no such bean exists, a bean definition
-will be created with an auto-generated bean name.
+`CustomService` beans you want to override. If no such bean exists, a bean will be
+created with an auto-generated bean name.

-The following example uses a by-name lookup, rather than a by-type lookup:
+The following example uses a by-name lookup, rather than a by-type lookup. If no bean
+named `service` exists, one is created.

 [tabs]
 ======
@@ -83,20 +135,20 @@ Java::
 +
 [source,java,indent=0,subs="verbatim,quotes"]
 ----
-	class OverrideBeanTests {
+	@SpringJUnitConfig(TestConfig.class)
+	class BeanOverrideTests {
+
 		@MockitoBean("service") // <1>
-		private CustomService customService;
+		CustomService customService;

-		// test case body...
+		// tests...

 	}
 ----
-<1> Replace the bean named `service` with a Mockito `mock`.
+<1> Replace the bean named `service` with a Mockito mock.
 ======

-If no bean definition named `service` exists, one is created.
-
-The following example shows how to use the default behavior of the `@MockitoSpyBean` annotation:
+The following `@SharedMocks` annotation registers two mocks by-type and one mock by-name.

 [tabs]
 ======
@@ -104,14 +156,73 @@ Java::
 +
 [source,java,indent=0,subs="verbatim,quotes"]
 ----
-	class OverrideBeanTests {
-		@MockitoSpyBean // <1>
-		private CustomService customService;
-
-		// test case body...
+	@Target(ElementType.TYPE)
+	@Retention(RetentionPolicy.RUNTIME)
+	@MockitoBean(types = {OrderService.class, UserService.class}) // <1>
+	@MockitoBean(name = "ps1", types = PrintingService.class) // <2>
+	public @interface SharedMocks {
 	}
 ----
-<1> Wrap the bean with type `CustomService` with a Mockito `spy`.
+<1> Register `OrderService` and `UserService` mocks by-type.
+<2> Register `PrintingService` mock by-name.
+======
+
+The following demonstrates how `@SharedMocks` can be used on a test class.
+
+[tabs]
+======
+Java::
+
+[source,java,indent=0,subs="verbatim,quotes"]
+----
+	@SpringJUnitConfig(TestConfig.class)
+	@SharedMocks // <1>
+	class BeanOverrideTests {
+
+		@Autowired OrderService orderService; // <2>
+
+		@Autowired UserService userService; // <2>
+
+		@Autowired PrintingService ps1; // <2>
+
+		// Inject other components that rely on the mocks.
+
+		@Test
+		void testThatDependsOnMocks() {
+			// ...
+		}
+	}
+----
+<1> Register common mocks via the custom `@SharedMocks` annotation.
+<2> Optionally inject mocks to _stub_ or _verify_ them.
+======
+
+TIP: The mocks can also be injected into `@Configuration` classes or other test-related
+components in the `ApplicationContext` in order to configure them with Mockito's stubbing
+APIs.
+
+[[spring-testing-annotation-beanoverriding-mockitospybean-examples]]
+== `@MockitoSpyBean` Examples
+
+The following example shows how to use the default behavior of the `@MockitoSpyBean`
+annotation.
+
+[tabs]
+======
+Java::
+
+[source,java,indent=0,subs="verbatim,quotes"]
+----
+	@SpringJUnitConfig(TestConfig.class)
+	class BeanOverrideTests {
+
+		@MockitoSpyBean // <1>
+		CustomService customService;
+
+		// tests...
+	}
+----
+<1> Wrap the bean with type `CustomService` with a Mockito spy.
 ======

 In the example above, we are wrapping the bean with type `CustomService`. If more than
@@ -119,7 +230,7 @@ one bean of that type exists, the bean named `customService` is considered. Othe
 the test will fail, and you will need to provide a qualifier of some sort to identify
 which of the `CustomService` beans you want to spy.

-The following example uses a by-name lookup, rather than a by-type lookup:
+The following example uses a by-name lookup, rather than a by-type lookup.

 [tabs]
 ======
@@ -127,13 +238,67 @@ Java::
 +
 [source,java,indent=0,subs="verbatim,quotes"]
 ----
-	class OverrideBeanTests {
+	@SpringJUnitConfig(TestConfig.class)
+	class BeanOverrideTests {
+
 		@MockitoSpyBean("service") // <1>
-		private CustomService customService;
-
-		// test case body...
+		CustomService customService;

+		// tests...
 	}
 ----
-<1> Wrap the bean named `service` with a Mockito `spy`.
+<1> Wrap the bean named `service` with a Mockito spy.
 ======
+
+The following `@SharedSpies` annotation registers two spies by-type and one spy by-name.
+
+[tabs]
+======
+Java::
+
+[source,java,indent=0,subs="verbatim,quotes"]
+----
+	@Target(ElementType.TYPE)
+	@Retention(RetentionPolicy.RUNTIME)
+	@MockitoSpyBean(types = {OrderService.class, UserService.class}) // <1>
+	@MockitoSpyBean(name = "ps1", types = PrintingService.class) // <2>
+	public @interface SharedSpies {
+	}
+----
+<1> Register `OrderService` and `UserService` spies by-type.
+<2> Register `PrintingService` spy by-name.
+======
+
+The following demonstrates how `@SharedSpies` can be used on a test class.
+
+[tabs]
+======
+Java::
+
+[source,java,indent=0,subs="verbatim,quotes"]
+----
+	@SpringJUnitConfig(TestConfig.class)
+	@SharedSpies // <1>
+	class BeanOverrideTests {
+
+		@Autowired OrderService orderService; // <2>
+
+		@Autowired UserService userService; // <2>
+
+		@Autowired PrintingService ps1; // <2>
+
+		// Inject other components that rely on the spies.
+
+		@Test
+		void testThatDependsOnMocks() {
+			// ...
+		}
+	}
+----
+<1> Register common spies via the custom `@SharedSpies` annotation.
+<2> Optionally inject spies to _stub_ or _verify_ them.
+======
+
+TIP: The spies can also be injected into `@Configuration` classes or other test-related
+components in the `ApplicationContext` in order to configure them with Mockito's stubbing
+APIs.
@@ -1,7 +1,8 @@
 [[spring-testing-annotation-beanoverriding-testbean]]
 = `@TestBean`

-`@TestBean` is used on a field in a test class to override a specific bean in the test's
+{spring-framework-api}/test/context/bean/override/convention/TestBean.html[`@TestBean`]
+is used on a non-static field in a test class to override a specific bean in the test's
 `ApplicationContext` with an instance provided by a factory method.

 The associated factory method name is derived from the annotated field's name, or the
@@ -30,6 +31,27 @@ same bean in several tests, make sure to name the field consistently to avoid cr
 unnecessary contexts.
 ====

+[WARNING]
+====
+Using `@TestBean` in conjunction with `@ContextHierarchy` can lead to undesirable results
+since each `@TestBean` will be applied to all context hierarchy levels by default. To
+ensure that a particular `@TestBean` is applied to a single context hierarchy level, set
+the `contextName` attribute to match a configured `@ContextConfiguration` name – for
+example, `@TestBean(contextName = "app-config")`.
+
+See
+xref:testing/testcontext-framework/ctx-management/hierarchies.adoc#testcontext-ctx-management-ctx-hierarchies-with-bean-overrides[context
+hierarchies with bean overrides] for further details and examples.
+====
+
+[NOTE]
+====
+There are no restrictions on the visibility of `@TestBean` fields or factory methods.
+
+Such fields and methods can therefore be `public`, `protected`, package-private (default
+visibility), or `private` depending on the needs or coding practices of the project.
+====
+
 The following example shows how to use the default behavior of the `@TestBean` annotation:

 [tabs]
@@ -40,11 +62,11 @@ Java::
 ----
 	class OverrideBeanTests {
 		@TestBean // <1>
-		private CustomService customService;
+		CustomService customService;

 		// test case body...

-		private static CustomService customService() { // <2>
+		static CustomService customService() { // <2>
 			return new MyFakeCustomService();
 		}
 	}
@@ -68,11 +90,11 @@ Java::
 ----
 	class OverrideBeanTests {
 		@TestBean(name = "service", methodName = "createCustomService") // <1>
-		private CustomService customService;
+		CustomService customService;

 		// test case body...

-		private static CustomService createCustomService() { // <2>
+		static CustomService createCustomService() { // <2>
 			return new MyFakeCustomService();
 		}
 	}
@@ -84,8 +106,10 @@ Java::

 [TIP]
 ====
-Spring searches for the factory method to invoke in the test class, in the test class
-hierarchy, and in the enclosing class hierarchy for a `@Nested` test class.
+To locate the factory method to invoke, Spring searches in the class in which the
+`@TestBean` field is declared, in one of its superclasses, or in any implemented
+interfaces. If the `@TestBean` field is declared in a `@Nested` test class, the enclosing
+class hierarchy will also be searched.

 Alternatively, a factory method in an external class can be referenced via its
 fully-qualified method name following the syntax `<fully-qualified class name>#<method name>`
@@ -26,16 +26,16 @@ Java::

 	@Test
 	void test() throws Exception {
-        MvcResult mvcResult = this.mockMvc.perform(get("/path"))
-                .andExpect(status().isOk()) <1>
-                .andExpect(request().asyncStarted()) <2>
-                .andExpect(request().asyncResult("body")) <3>
-                .andReturn();
+		MvcResult mvcResult = this.mockMvc.perform(get("/path"))
+				.andExpect(status().isOk()) <1>
+				.andExpect(request().asyncStarted()) <2>
+				.andExpect(request().asyncResult("body")) <3>
+				.andReturn();

-        this.mockMvc.perform(asyncDispatch(mvcResult)) <4>
-                .andExpect(status().isOk()) <5>
-                .andExpect(content().string("body"));
-    }
+		this.mockMvc.perform(asyncDispatch(mvcResult)) <4>
+				.andExpect(status().isOk()) <5>
+				.andExpect(content().string("body"));
+	}
 ----
 <1> Check response status is still unchanged
 <2> Async processing must have started
@@ -2,7 +2,8 @@
 = Bean Overriding in Tests

 Bean overriding in tests refers to the ability to override specific beans in the
-`ApplicationContext` for a test class, by annotating one or more fields in the test class.
+`ApplicationContext` for a test class, by annotating the test class or one or more
+non-static fields in the test class.

 NOTE: This feature is intended as a less risky alternative to the practice of registering
 a bean via `@Bean` with the `DefaultListableBeanFactory`
@@ -41,14 +42,16 @@ The `spring-test` module registers implementations of the latter two
 {spring-framework-code}/spring-test/src/main/resources/META-INF/spring.factories[`META-INF/spring.factories`
 properties file].

-The bean overriding infrastructure searches in test classes for any field meta-annotated
-with `@BeanOverride` and instantiates the corresponding `BeanOverrideProcessor` which is
+The bean overriding infrastructure searches for annotations on test classes as well as
+annotations on non-static fields in test classes that are meta-annotated with
+`@BeanOverride` and instantiates the corresponding `BeanOverrideProcessor` which is
 responsible for creating an appropriate `BeanOverrideHandler`.

 The internal `BeanOverrideBeanFactoryPostProcessor` then uses bean override handlers to
 alter the test's `ApplicationContext` by creating, replacing, or wrapping beans as
 defined by the corresponding `BeanOverrideStrategy`:

+[[testcontext-bean-overriding-strategy]]
 `REPLACE`::
  Replaces the bean. Throws an exception if a corresponding bean does not exist.
 `REPLACE_OR_CREATE`::
@@ -4,7 +4,7 @@
 Once the TestContext framework loads an `ApplicationContext` (or `WebApplicationContext`)
 for a test, that context is cached and reused for all subsequent tests that declare the
 same unique context configuration within the same test suite. To understand how caching
-works, it is important to understand what is meant by "`unique`" and "`test suite.`"
+works, it is important to understand what is meant by "unique" and "test suite."

 An `ApplicationContext` can be uniquely identified by the combination of configuration
 parameters that is used to load it. Consequently, the unique combination of configuration
@@ -15,8 +15,8 @@ framework uses the following configuration parameters to build the context cache
 * `classes` (from `@ContextConfiguration`)
 * `contextInitializerClasses` (from `@ContextConfiguration`)
 * `contextCustomizers` (from `ContextCustomizerFactory`) – this includes
-  `@DynamicPropertySource` methods as well as various features from Spring Boot's
-  testing support such as `@MockBean` and `@SpyBean`.
+  `@DynamicPropertySource` methods, bean overrides (such as `@TestBean`, `@MockitoBean`,
+  `@MockitoSpyBean` etc.), as well as various features from Spring Boot's testing support.
 * `contextLoader` (from `@ContextConfiguration`)
 * `parent` (from `@ContextHierarchy`)
 * `activeProfiles` (from `@ActiveProfiles`)
@@ -1,5 +1,5 @@
 [[testcontext-context-customizers]]
-= Configuration Configuration with Context Customizers
+= Context Configuration with Context Customizers

 A `ContextCustomizer` is responsible for customizing the supplied
 `ConfigurableApplicationContext` after bean definitions have been loaded into the context
@@ -22,8 +22,19 @@ given level in the hierarchy, the configuration resource type (that is, XML conf
 files or component classes) must be consistent. Otherwise, it is perfectly acceptable to
 have different levels in a context hierarchy configured using different resource types.

-The remaining JUnit Jupiter based examples in this section show common configuration
-scenarios for integration tests that require the use of context hierarchies.
+[NOTE]
+====
+If you use `@DirtiesContext` in a test whose context is configured as part of a context
+hierarchy, you can use the `hierarchyMode` flag to control how the context cache is
+cleared.
+
+For further details, see the discussion of `@DirtiesContext` in
+xref:testing/annotations/integration-spring/annotation-dirtiescontext.adoc[Spring Testing Annotations]
+and the {spring-framework-api}/test/annotation/DirtiesContext.html[`@DirtiesContext`] javadoc.
+====
+
+The JUnit Jupiter based examples in this section show common configuration scenarios for
+integration tests that require the use of context hierarchies.

 **Single test class with context hierarchy**
 --
@@ -229,12 +240,118 @@ Kotlin::
 	class ExtendedTests : BaseTests() {}
 ----
 ======
-
-.Dirtying a context within a context hierarchy
-NOTE: If you use `@DirtiesContext` in a test whose context is configured as part of a
-context hierarchy, you can use the `hierarchyMode` flag to control how the context cache
-is cleared. For further details, see the discussion of `@DirtiesContext` in
-xref:testing/annotations/integration-spring/annotation-dirtiescontext.adoc[Spring Testing Annotations] and the
-{spring-framework-api}/test/annotation/DirtiesContext.html[`@DirtiesContext`] javadoc.
 --

+[[testcontext-ctx-management-ctx-hierarchies-with-bean-overrides]]
+**Context hierarchies with bean overrides**
+--
+When `@ContextHierarchy` is used in conjunction with
+xref:testing/testcontext-framework/bean-overriding.adoc[bean overrides] such as
+`@TestBean`, `@MockitoBean`, or `@MockitoSpyBean`, it may be desirable or necessary to
+have the override applied to a single level in the context hierarchy. To achieve that,
+the bean override must specify a context name that matches a name configured via the
+`name` attribute in `@ContextConfiguration`.
+
+The following test class configures the name of the second hierarchy level to be
+`"user-config"` and simultaneously specifies that the `UserService` should be wrapped in
+a Mockito spy in the context named `"user-config"`. Consequently, Spring will only
+attempt to create the spy in the `"user-config"` context and will not attempt to create
+the spy in the parent context.
+
+[tabs]
+======
+Java::
+
+[source,java,indent=0,subs="verbatim,quotes"]
+----
+	@ExtendWith(SpringExtension.class)
+	@ContextHierarchy({
+		@ContextConfiguration(classes = AppConfig.class),
+		@ContextConfiguration(classes = UserConfig.class, name = "user-config")
+	})
+	class IntegrationTests {
+
+		@MockitoSpyBean(contextName = "user-config")
+		UserService userService;
+
+		// ...
+	}
+----
+
+Kotlin::
+
+[source,kotlin,indent=0,subs="verbatim,quotes"]
+----
+	@ExtendWith(SpringExtension::class)
+	@ContextHierarchy(
+		ContextConfiguration(classes = [AppConfig::class]),
+		ContextConfiguration(classes = [UserConfig::class], name = "user-config"))
+	class IntegrationTests {
+
+		@MockitoSpyBean(contextName = "user-config")
+		lateinit var userService: UserService
+
+		// ...
+	}
+----
+======
+
+When applying bean overrides in different levels of the context hierarchy, you may need
+to have all of the bean override instances injected into the test class in order to
+interact with them — for example, to configure stubbing for mocks. However, `@Autowired`
+will always inject a matching bean found in the lowest level of the context hierarchy.
+Thus, to inject bean override instances from specific levels in the context hierarchy,
+you need to annotate fields with appropriate bean override annotations and configure the
+name of the context level.
+
+The following test class configures the names of the hierarchy levels to be `"parent"`
+and `"child"`. It also declares two `PropertyService` fields that are configured to
+create or replace `PropertyService` beans with Mockito mocks in the respective contexts,
+named `"parent"` and `"child"`. Consequently, the mock from the `"parent"` context will
+be injected into the `propertyServiceInParent` field, and the mock from the `"child"`
+context will be injected into the `propertyServiceInChild` field.
+
+[tabs]
+======
+Java::
+
+[source,java,indent=0,subs="verbatim,quotes"]
+----
+	@ExtendWith(SpringExtension.class)
+	@ContextHierarchy({
+		@ContextConfiguration(classes = ParentConfig.class, name = "parent"),
+		@ContextConfiguration(classes = ChildConfig.class, name = "child")
+	})
+	class IntegrationTests {
+
+		@MockitoBean(contextName = "parent")
+		PropertyService propertyServiceInParent;
+
+		@MockitoBean(contextName = "child")
+		PropertyService propertyServiceInChild;
+
+		// ...
+	}
+----
+
+Kotlin::
+
+[source,kotlin,indent=0,subs="verbatim,quotes"]
+----
+	@ExtendWith(SpringExtension::class)
+	@ContextHierarchy(
+		ContextConfiguration(classes = [ParentConfig::class], name = "parent"),
+		ContextConfiguration(classes = [ChildConfig::class], name = "child"))
+	class IntegrationTests {
+
+		@MockitoBean(contextName = "parent")
+		lateinit var propertyServiceInParent: PropertyService
+
+		@MockitoBean(contextName = "child")
+		lateinit var propertyServiceInChild: PropertyService
+
+		// ...
+	}
+----
+======
+--
@@ -18,9 +18,9 @@ Do not run tests in parallel if the tests:
 * Use Spring Framework's `@DirtiesContext` support.
 * Use Spring Framework's `@MockitoBean` or `@MockitoSpyBean` support.
 * Use Spring Boot's `@MockBean` or `@SpyBean` support.
-* Use JUnit 4's `@FixMethodOrder` support or any testing framework feature
-  that is designed to ensure that test methods run in a particular order. Note,
-  however, that this does not apply if entire test classes are run in parallel.
+* Use JUnit Jupiter's `@TestMethodOrder` support or any testing framework feature that is
+  designed to ensure that test methods run in a particular order. Note, however, that
+  this does not apply if entire test classes are run in parallel.
 * Change the state of shared services or systems such as a database, message broker,
  filesystem, and others. This applies to both embedded and external systems.

@@ -1,166 +1,9 @@
 [[testcontext-support-classes]]
 = TestContext Framework Support Classes

-This section describes the various classes that support the Spring TestContext Framework.
+This section describes the various classes that support the Spring TestContext Framework
+in JUnit and TestNG.

-[[testcontext-junit4-runner]]
-== Spring JUnit 4 Runner
-
-The Spring TestContext Framework offers full integration with JUnit 4 through a custom
-runner (supported on JUnit 4.12 or higher). By annotating test classes with
-`@RunWith(SpringJUnit4ClassRunner.class)` or the shorter `@RunWith(SpringRunner.class)`
-variant, developers can implement standard JUnit 4-based unit and integration tests and
-simultaneously reap the benefits of the TestContext framework, such as support for
-loading application contexts, dependency injection of test instances, transactional test
-method execution, and so on. If you want to use the Spring TestContext Framework with an
-alternative runner (such as JUnit 4's `Parameterized` runner) or third-party runners
-(such as the `MockitoJUnitRunner`), you can, optionally, use
-xref:testing/testcontext-framework/support-classes.adoc#testcontext-junit4-rules[Spring's support for JUnit rules] instead.
-
-The following code listing shows the minimal requirements for configuring a test class to
-run with the custom Spring `Runner`:
-
-[tabs]
-======
-Java::
-+
-[source,java,indent=0,subs="verbatim,quotes"]
----
-	@RunWith(SpringRunner.class)
-	@TestExecutionListeners({})
-	public class SimpleTest {
-
-		@Test
-		public void testMethod() {
-			// test logic...
-		}
-	}
----
-
-Kotlin::
-+
-[source,kotlin,indent=0,subs="verbatim,quotes"]
----
-	@RunWith(SpringRunner::class)
-	@TestExecutionListeners
-	class SimpleTest {
-
-		@Test
-		fun testMethod() {
-			// test logic...
-		}
-	}
----
-======
-
-In the preceding example, `@TestExecutionListeners` is configured with an empty list, to
-disable the default listeners, which otherwise would require an `ApplicationContext` to
-be configured through `@ContextConfiguration`.
-
-[[testcontext-junit4-rules]]
-== Spring JUnit 4 Rules
-
-The `org.springframework.test.context.junit4.rules` package provides the following JUnit
-4 rules (supported on JUnit 4.12 or higher):
-
-* `SpringClassRule`
-* `SpringMethodRule`
-
-`SpringClassRule` is a JUnit `TestRule` that supports class-level features of the Spring
-TestContext Framework, whereas `SpringMethodRule` is a JUnit `MethodRule` that supports
-instance-level and method-level features of the Spring TestContext Framework.
-
-In contrast to the `SpringRunner`, Spring's rule-based JUnit support has the advantage of
-being independent of any `org.junit.runner.Runner` implementation and can, therefore, be
-combined with existing alternative runners (such as JUnit 4's `Parameterized`) or
-third-party runners (such as the `MockitoJUnitRunner`).
-
-To support the full functionality of the TestContext framework, you must combine a
-`SpringClassRule` with a `SpringMethodRule`. The following example shows the proper way
-to declare these rules in an integration test:
-
-[tabs]
-======
-Java::
-+
-[source,java,indent=0,subs="verbatim,quotes"]
----
-	// Optionally specify a non-Spring Runner via @RunWith(...)
-	@ContextConfiguration
-	public class IntegrationTest {
-
-		@ClassRule
-		public static final SpringClassRule springClassRule = new SpringClassRule();
-
-		@Rule
-		public final SpringMethodRule springMethodRule = new SpringMethodRule();
-
-		@Test
-		public void testMethod() {
-			// test logic...
-		}
-	}
----
-
-Kotlin::
-+
-[source,kotlin,indent=0,subs="verbatim,quotes"]
----
-	// Optionally specify a non-Spring Runner via @RunWith(...)
-	@ContextConfiguration
-	class IntegrationTest {
-
-		@Rule
-		val springMethodRule = SpringMethodRule()
-
-		@Test
-		fun testMethod() {
-			// test logic...
-		}
-
-		companion object {
-			@ClassRule
-			val springClassRule = SpringClassRule()
-		}
-	}
----
-======
-
-[[testcontext-support-classes-junit4]]
-== JUnit 4 Support Classes
-
-The `org.springframework.test.context.junit4` package provides the following support
-classes for JUnit 4-based test cases (supported on JUnit 4.12 or higher):
-
-* `AbstractJUnit4SpringContextTests`
-* `AbstractTransactionalJUnit4SpringContextTests`
-
-`AbstractJUnit4SpringContextTests` is an abstract base test class that integrates the
-Spring TestContext Framework with explicit `ApplicationContext` testing support in a
-JUnit 4 environment. When you extend `AbstractJUnit4SpringContextTests`, you can access a
-`protected` `applicationContext` instance variable that you can use to perform explicit
-bean lookups or to test the state of the context as a whole.
-
-`AbstractTransactionalJUnit4SpringContextTests` is an abstract transactional extension of
-`AbstractJUnit4SpringContextTests` that adds some convenience functionality for JDBC
-access. This class expects a `javax.sql.DataSource` bean and a
-`PlatformTransactionManager` bean to be defined in the `ApplicationContext`. When you
-extend `AbstractTransactionalJUnit4SpringContextTests`, you can access a `protected`
-`jdbcTemplate` instance variable that you can use to run SQL statements to query the
-database. You can use such queries to confirm database state both before and after
-running database-related application code, and Spring ensures that such queries run in
-the scope of the same transaction as the application code. When used in conjunction with
-an ORM tool, be sure to avoid xref:testing/testcontext-framework/tx.adoc#testcontext-tx-false-positives[false positives].
-As mentioned in xref:testing/support-jdbc.adoc[JDBC Testing Support],
-`AbstractTransactionalJUnit4SpringContextTests` also provides convenience methods that
-delegate to methods in `JdbcTestUtils` by using the aforementioned `jdbcTemplate`.
-Furthermore, `AbstractTransactionalJUnit4SpringContextTests` provides an
-`executeSqlScript(..)` method for running SQL scripts against the configured `DataSource`.
-
-TIP: These classes are a convenience for extension. If you do not want your test classes
-to be tied to a Spring-specific class hierarchy, you can configure your own custom test
-classes by using `@RunWith(SpringRunner.class)` or xref:testing/testcontext-framework/support-classes.adoc#testcontext-junit4-rules[Spring's JUnit rules]
-.

 [[testcontext-junit-jupiter-extension]]
 == SpringExtension for JUnit Jupiter
@@ -177,14 +20,17 @@ following features above and beyond the feature set that Spring supports for JUn
 TestNG:

 * Dependency injection for test constructors, test methods, and test lifecycle callback
-  methods. See xref:testing/testcontext-framework/support-classes.adoc#testcontext-junit-jupiter-di[Dependency Injection with the `SpringExtension`] for further details.
+  methods. See xref:testing/testcontext-framework/support-classes.adoc#testcontext-junit-jupiter-di[Dependency
+  Injection with the `SpringExtension`] for further details.
 * Powerful support for link:https://junit.org/junit5/docs/current/user-guide/#extensions-conditions[conditional
  test execution] based on SpEL expressions, environment variables, system properties,
  and so on. See the documentation for `@EnabledIf` and `@DisabledIf` in
-  xref:testing/annotations/integration-junit-jupiter.adoc[Spring JUnit Jupiter Testing Annotations] for further details and examples.
+  xref:testing/annotations/integration-junit-jupiter.adoc[Spring JUnit Jupiter Testing Annotations]
+  for further details and examples.
 * Custom composed annotations that combine annotations from Spring and JUnit Jupiter. See
  the `@TransactionalDevTestConfig` and `@TransactionalIntegrationTest` examples in
-  xref:testing/annotations/integration-meta.adoc[Meta-Annotation Support for Testing] for further details.
+  xref:testing/annotations/integration-meta.adoc[Meta-Annotation Support for Testing] for
+  further details.

 The following code listing shows how to configure a test class to use the
 `SpringExtension` in conjunction with `@ContextConfiguration`:
@@ -307,7 +153,8 @@ Kotlin::
 ======

 See the documentation for `@SpringJUnitConfig` and `@SpringJUnitWebConfig` in
-xref:testing/annotations/integration-junit-jupiter.adoc[Spring JUnit Jupiter Testing Annotations] for further details.
+xref:testing/annotations/integration-junit-jupiter.adoc[Spring JUnit Jupiter Testing Annotations]
+for further details.

 [[testcontext-junit-jupiter-di]]
 === Dependency Injection with the `SpringExtension`
@@ -318,10 +165,9 @@ extension API from JUnit Jupiter, which lets Spring provide dependency injection
 constructors, test methods, and test lifecycle callback methods.

 Specifically, the `SpringExtension` can inject dependencies from the test's
-`ApplicationContext` into test constructors and methods that are annotated with
-Spring's `@BeforeTransaction` and `@AfterTransaction` or JUnit's `@BeforeAll`,
-`@AfterAll`, `@BeforeEach`, `@AfterEach`, `@Test`, `@RepeatedTest`, `@ParameterizedTest`,
-and others.
+`ApplicationContext` into test constructors and methods that are annotated with Spring's
+`@BeforeTransaction` and `@AfterTransaction` or JUnit's `@BeforeAll`, `@AfterAll`,
+`@BeforeEach`, `@AfterEach`, `@Test`, `@RepeatedTest`, `@ParameterizedTest`, and others.


 [[testcontext-junit-jupiter-di-constructor]]
@@ -341,8 +187,9 @@ autowirable if one of the following conditions is met (in order of precedence).
  attribute set to `ALL`.
 * The default _test constructor autowire mode_ has been changed to `ALL`.

-See xref:testing/annotations/integration-junit-jupiter.adoc#integration-testing-annotations-testconstructor[`@TestConstructor`] for details on the use of
-`@TestConstructor` and how to change the global _test constructor autowire mode_.
+See xref:testing/annotations/integration-junit-jupiter.adoc#integration-testing-annotations-testconstructor[`@TestConstructor`]
+for details on the use of `@TestConstructor` and how to change the global _test
+constructor autowire mode_.

 WARNING: If the constructor for a test class is considered to be _autowirable_, Spring
 assumes the responsibility for resolving arguments for all parameters in the constructor.
@@ -407,8 +254,9 @@ Kotlin::
 Note that this feature lets test dependencies be `final` and therefore immutable.

 If the `spring.test.constructor.autowire.mode` property is to `all` (see
-xref:testing/annotations/integration-junit-jupiter.adoc#integration-testing-annotations-testconstructor[`@TestConstructor`]), we can omit the declaration of
-`@Autowired` on the constructor in the previous example, resulting in the following.
+xref:testing/annotations/integration-junit-jupiter.adoc#integration-testing-annotations-testconstructor[`@TestConstructor`]),
+we can omit the declaration of `@Autowired` on the constructor in the previous example,
+resulting in the following.

 [tabs]
 ======
@@ -553,17 +401,19 @@ honor `@NestedTestConfiguration` semantics.
 In order to allow development teams to change the default to `OVERRIDE` – for example,
 for compatibility with Spring Framework 5.0 through 5.2 – the default mode can be changed
 globally via a JVM system property or a `spring.properties` file in the root of the
-classpath. See the xref:testing/annotations/integration-junit-jupiter.adoc#integration-testing-annotations-nestedtestconfiguration["Changing the default enclosing configuration inheritance mode"]
- note for details.
+classpath. See the
+xref:testing/annotations/integration-junit-jupiter.adoc#integration-testing-annotations-nestedtestconfiguration["Changing the default enclosing configuration inheritance mode"]
+note for details.

 Although the following "Hello World" example is very simplistic, it shows how to declare
 common configuration on a top-level class that is inherited by its `@Nested` test
 classes. In this particular example, only the `TestConfig` configuration class is
 inherited. Each nested test class provides its own set of active profiles, resulting in a
 distinct `ApplicationContext` for each nested test class (see
-xref:testing/testcontext-framework/ctx-management/caching.adoc[Context Caching] for details). Consult the list of
-xref:testing/annotations/integration-junit-jupiter.adoc#integration-testing-annotations-nestedtestconfiguration[supported annotations] to see
-which annotations can be inherited in `@Nested` test classes.
+xref:testing/testcontext-framework/ctx-management/caching.adoc[Context Caching] for details).
+Consult the list of
+xref:testing/annotations/integration-junit-jupiter.adoc#integration-testing-annotations-nestedtestconfiguration[supported annotations]
+to see which annotations can be inherited in `@Nested` test classes.

 [tabs]
 ======
@@ -626,8 +476,174 @@ Kotlin::
 ----
 ======

+
+[[testcontext-junit4-support]]
+== JUnit 4 Support
+
+[[testcontext-junit4-runner]]
+=== Spring JUnit 4 Runner
+
+The Spring TestContext Framework offers full integration with JUnit 4 through a custom
+runner (supported on JUnit 4.12 or higher). By annotating test classes with
+`@RunWith(SpringJUnit4ClassRunner.class)` or the shorter `@RunWith(SpringRunner.class)`
+variant, developers can implement standard JUnit 4-based unit and integration tests and
+simultaneously reap the benefits of the TestContext framework, such as support for
+loading application contexts, dependency injection of test instances, transactional test
+method execution, and so on. If you want to use the Spring TestContext Framework with an
+alternative runner (such as JUnit 4's `Parameterized` runner) or third-party runners
+(such as the `MockitoJUnitRunner`), you can, optionally, use
+xref:testing/testcontext-framework/support-classes.adoc#testcontext-junit4-rules[Spring's support for JUnit rules]
+instead.
+
+The following code listing shows the minimal requirements for configuring a test class to
+run with the custom Spring `Runner`:
+
+[tabs]
+======
+Java::
+
+[source,java,indent=0,subs="verbatim,quotes"]
+----
+	@RunWith(SpringRunner.class)
+	@TestExecutionListeners({})
+	public class SimpleTest {
+
+		@Test
+		public void testMethod() {
+			// test logic...
+		}
+	}
+----
+
+Kotlin::
+
+[source,kotlin,indent=0,subs="verbatim,quotes"]
+----
+	@RunWith(SpringRunner::class)
+	@TestExecutionListeners
+	class SimpleTest {
+
+		@Test
+		fun testMethod() {
+			// test logic...
+		}
+	}
+----
+======
+
+In the preceding example, `@TestExecutionListeners` is configured with an empty list, to
+disable the default listeners, which otherwise would require an `ApplicationContext` to
+be configured through `@ContextConfiguration`.
+
+[[testcontext-junit4-rules]]
+=== Spring JUnit 4 Rules
+
+The `org.springframework.test.context.junit4.rules` package provides the following JUnit
+4 rules (supported on JUnit 4.12 or higher):
+
+* `SpringClassRule`
+* `SpringMethodRule`
+
+`SpringClassRule` is a JUnit `TestRule` that supports class-level features of the Spring
+TestContext Framework, whereas `SpringMethodRule` is a JUnit `MethodRule` that supports
+instance-level and method-level features of the Spring TestContext Framework.
+
+In contrast to the `SpringRunner`, Spring's rule-based JUnit support has the advantage of
+being independent of any `org.junit.runner.Runner` implementation and can, therefore, be
+combined with existing alternative runners (such as JUnit 4's `Parameterized`) or
+third-party runners (such as the `MockitoJUnitRunner`).
+
+To support the full functionality of the TestContext framework, you must combine a
+`SpringClassRule` with a `SpringMethodRule`. The following example shows the proper way
+to declare these rules in an integration test:
+
+[tabs]
+======
+Java::
+
+[source,java,indent=0,subs="verbatim,quotes"]
+----
+	// Optionally specify a non-Spring Runner via @RunWith(...)
+	@ContextConfiguration
+	public class IntegrationTest {
+
+		@ClassRule
+		public static final SpringClassRule springClassRule = new SpringClassRule();
+
+		@Rule
+		public final SpringMethodRule springMethodRule = new SpringMethodRule();
+
+		@Test
+		public void testMethod() {
+			// test logic...
+		}
+	}
+----
+
+Kotlin::
+
+[source,kotlin,indent=0,subs="verbatim,quotes"]
+----
+	// Optionally specify a non-Spring Runner via @RunWith(...)
+	@ContextConfiguration
+	class IntegrationTest {
+
+		@Rule
+		val springMethodRule = SpringMethodRule()
+
+		@Test
+		fun testMethod() {
+			// test logic...
+		}
+
+		companion object {
+			@ClassRule
+			val springClassRule = SpringClassRule()
+		}
+	}
+----
+======
+
+[[testcontext-support-classes-junit4]]
+=== JUnit 4 Base Classes
+
+The `org.springframework.test.context.junit4` package provides the following support
+classes for JUnit 4-based test cases (supported on JUnit 4.12 or higher):
+
+* `AbstractJUnit4SpringContextTests`
+* `AbstractTransactionalJUnit4SpringContextTests`
+
+`AbstractJUnit4SpringContextTests` is an abstract base test class that integrates the
+Spring TestContext Framework with explicit `ApplicationContext` testing support in a
+JUnit 4 environment. When you extend `AbstractJUnit4SpringContextTests`, you can access a
+`protected` `applicationContext` instance variable that you can use to perform explicit
+bean lookups or to test the state of the context as a whole.
+
+`AbstractTransactionalJUnit4SpringContextTests` is an abstract transactional extension of
+`AbstractJUnit4SpringContextTests` that adds some convenience functionality for JDBC
+access. This class expects a `javax.sql.DataSource` bean and a
+`PlatformTransactionManager` bean to be defined in the `ApplicationContext`. When you
+extend `AbstractTransactionalJUnit4SpringContextTests`, you can access a `protected`
+`jdbcTemplate` instance variable that you can use to run SQL statements to query the
+database. You can use such queries to confirm database state both before and after
+running database-related application code, and Spring ensures that such queries run in
+the scope of the same transaction as the application code. When used in conjunction with
+an ORM tool, be sure to avoid
+xref:testing/testcontext-framework/tx.adoc#testcontext-tx-false-positives[false positives].
+As mentioned in xref:testing/support-jdbc.adoc[JDBC Testing Support],
+`AbstractTransactionalJUnit4SpringContextTests` also provides convenience methods that
+delegate to methods in `JdbcTestUtils` by using the aforementioned `jdbcTemplate`.
+Furthermore, `AbstractTransactionalJUnit4SpringContextTests` provides an
+`executeSqlScript(..)` method for running SQL scripts against the configured `DataSource`.
+
+TIP: These classes are a convenience for extension. If you do not want your test classes
+to be tied to a Spring-specific class hierarchy, you can configure your own custom test
+classes by using `@RunWith(SpringRunner.class)` or
+xref:testing/testcontext-framework/support-classes.adoc#testcontext-junit4-rules[Spring's JUnit rules].
+
+
 [[testcontext-support-classes-testng]]
-== TestNG Support Classes
+== TestNG Support

 The `org.springframework.test.context.testng` package provides the following support
 classes for TestNG based test cases:
@@ -650,7 +666,8 @@ extend `AbstractTransactionalTestNGSpringContextTests`, you can access a `protec
 database. You can use such queries to confirm database state both before and after
 running database-related application code, and Spring ensures that such queries run in
 the scope of the same transaction as the application code. When used in conjunction with
-an ORM tool, be sure to avoid xref:testing/testcontext-framework/tx.adoc#testcontext-tx-false-positives[false positives].
+an ORM tool, be sure to avoid
+xref:testing/testcontext-framework/tx.adoc#testcontext-tx-false-positives[false positives].
 As mentioned in xref:testing/support-jdbc.adoc[JDBC Testing Support],
 `AbstractTransactionalTestNGSpringContextTests` also provides convenience methods that
 delegate to methods in `JdbcTestUtils` by using the aforementioned `jdbcTemplate`.
@@ -7,16 +7,17 @@ by default, exactly in the following order:
 * `ServletTestExecutionListener`: Configures Servlet API mocks for a
  `WebApplicationContext`.
 * `DirtiesContextBeforeModesTestExecutionListener`: Handles the `@DirtiesContext`
-  annotation for "`before`" modes.
+  annotation for "before" modes.
 * `ApplicationEventsTestExecutionListener`: Provides support for
  xref:testing/testcontext-framework/application-events.adoc[`ApplicationEvents`].
-* `BeanOverrideTestExecutionListener`: Provides support for xref:testing/testcontext-framework/bean-overriding.adoc[] .
+* `BeanOverrideTestExecutionListener`: Provides support for
+  xref:testing/testcontext-framework/bean-overriding.adoc[].
 * `DependencyInjectionTestExecutionListener`: Provides dependency injection for the test
  instance.
 * `MicrometerObservationRegistryTestExecutionListener`: Provides support for
  Micrometer's `ObservationRegistry`.
 * `DirtiesContextTestExecutionListener`: Handles the `@DirtiesContext` annotation for
-  "`after`" modes.
+  "after" modes.
 * `CommonCachesTestExecutionListener`: Clears resource caches in the test's
  `ApplicationContext` if necessary.
 * `TransactionalTestExecutionListener`: Provides transactional test execution with
@@ -161,15 +162,16 @@ change from release to release -- for example, `SqlScriptsTestExecutionListener`
 introduced in Spring Framework 4.1, and `DirtiesContextBeforeModesTestExecutionListener`
 was introduced in Spring Framework 4.2. Furthermore, third-party frameworks like Spring
 Boot and Spring Security register their own default `TestExecutionListener`
-implementations by using the aforementioned xref:testing/testcontext-framework/tel-config.adoc#testcontext-tel-config-automatic-discovery[automatic discovery mechanism]
-.
+implementations by using the aforementioned
+xref:testing/testcontext-framework/tel-config.adoc#testcontext-tel-config-automatic-discovery[automatic discovery mechanism].

 To avoid having to be aware of and re-declare all default listeners, you can set the
 `mergeMode` attribute of `@TestExecutionListeners` to `MergeMode.MERGE_WITH_DEFAULTS`.
 `MERGE_WITH_DEFAULTS` indicates that locally declared listeners should be merged with the
 default listeners. The merging algorithm ensures that duplicates are removed from the
 list and that the resulting set of merged listeners is sorted according to the semantics
-of `AnnotationAwareOrderComparator`, as described in xref:testing/testcontext-framework/tel-config.adoc#testcontext-tel-config-ordering[Ordering `TestExecutionListener` Implementations].
+of `AnnotationAwareOrderComparator`, as described in
+xref:testing/testcontext-framework/tel-config.adoc#testcontext-tel-config-ordering[Ordering `TestExecutionListener` Implementations].
 If a listener implements `Ordered` or is annotated with `@Order`, it can influence the
 position in which it is merged with the defaults. Otherwise, locally declared listeners
 are appended to the list of default listeners when merged.
@@ -47,8 +47,7 @@ out-of-container tests for code that depends on environment-specific properties.
 The `org.springframework.mock.web` package contains a comprehensive set of Servlet API
 mock objects that are useful for testing web contexts, controllers, and filters. These
 mock objects are targeted at usage with Spring's Web MVC framework and are generally more
-convenient to use than dynamic mock objects (such as https://easymock.org/[EasyMock])
-or alternative Servlet API mock objects (such as http://www.mockobjects.com[MockObjects]).
+convenient to use than dynamic mock objects (such as https://easymock.org/[EasyMock]).

 TIP: Since Spring Framework 6.0, the mock objects in `org.springframework.mock.web` are
 based on the Servlet 6.0 API.
@@ -127,7 +127,7 @@ Kotlin::
 ======

 For Spring MVC, use the following where the Spring `ApplicationContext` is passed to
-{spring-framework-api}/test/web/servlet/setup/MockMvcBuilders.html#webAppContextSetup-org.springframework.web.context.WebApplicationContext-[MockMvcBuilders.webAppContextSetup]
+{spring-framework-api}/test/web/servlet/setup/MockMvcBuilders.html#webAppContextSetup(org.springframework.web.context.WebApplicationContext)[MockMvcBuilders.webAppContextSetup]
 to create a xref:testing/mockmvc.adoc[MockMvc] instance to handle
 requests:

@@ -193,7 +193,7 @@ Kotlin::
 [[webtestclient-fn-config]]
 === Bind to Router Function

-This setup allows you to test <<web-reactive.adoc#webflux-fn, functional endpoints>> via
+This setup allows you to test xref:web/webflux-functional.adoc[functional endpoints] via
 mock request and response objects, without a running server.

 For WebFlux, use the following which delegates to `RouterFunctions.toWebHandler` to
@@ -396,7 +396,7 @@ Java::
 +
 [source,java,indent=0,subs="verbatim,quotes"]
 ----
-    import org.springframework.test.web.reactive.server.expectBody
+	import org.springframework.test.web.reactive.server.expectBody

 	client.get().uri("/persons/1")
 			.exchange()
@@ -1,5 +1,6 @@
 [[webflux-cors]]
 = CORS
+
 [.small]#xref:web/webmvc-cors.adoc[See equivalent in the Servlet stack]#

 Spring WebFlux lets you handle CORS (Cross-Origin Resource Sharing). This section
@@ -364,7 +365,7 @@ Kotlin::

 You can apply CORS support through the built-in
 {spring-framework-api}/web/cors/reactive/CorsWebFilter.html[`CorsWebFilter`], which is a
-good fit with <<webflux-fn, functional endpoints>>.
+good fit with xref:web/webflux-functional.adoc[functional endpoints].

 NOTE: If you try to use the `CorsFilter` with Spring Security, keep in mind that Spring
 Security has {docs-spring-security}/servlet/integrations/cors.html[built-in support] for
@@ -1,5 +1,6 @@
 [[webflux-fn]]
 = Functional Endpoints
+
 [.small]#xref:web/webmvc-functional.adoc[See equivalent in the Servlet stack]#

 Spring WebFlux includes WebFlux.fn, a lightweight functional programming model in which functions
@@ -1,5 +1,6 @@
 [[webflux-view]]
 = View Technologies
+
 [.small]#xref:web/webmvc-view.adoc[See equivalent in the Servlet stack]#

 The rendering of views in Spring WebFlux is pluggable. Whether you decide to
@@ -224,9 +225,9 @@ The following table shows the templating libraries that we have tested on differ
 |Scripting Library |Scripting Engine
 |https://handlebarsjs.com/[Handlebars] |https://openjdk.java.net/projects/nashorn/[Nashorn]
 |https://mustache.github.io/[Mustache] |https://openjdk.java.net/projects/nashorn/[Nashorn]
-|https://facebook.github.io/react/[React] |https://openjdk.java.net/projects/nashorn/[Nashorn]
-|https://www.embeddedjs.com/[EJS] |https://openjdk.java.net/projects/nashorn/[Nashorn]
-|https://www.stuartellis.name/articles/erb/[ERB] |https://www.jruby.org[JRuby]
+|https://react.dev/[React] |https://openjdk.java.net/projects/nashorn/[Nashorn]
+|https://ejs.co/[EJS] |https://openjdk.java.net/projects/nashorn/[Nashorn]
+|https://docs.ruby-lang.org/en/master/ERB.html[ERB] |https://www.jruby.org[JRuby]
 |https://docs.python.org/2/library/string.html#template-strings[String templates] |https://www.jython.org/[Jython]
 |https://github.com/sdeleuze/kotlin-script-templating[Kotlin Script templating] |{kotlin-site}[Kotlin]
 |===
@@ -306,34 +306,34 @@ Java::
 +
 [source,java,indent=0,subs="verbatim,quotes"]
 ----
-Resource resource = ...
-Mono<String> result = webClient
-    .post()
-    .uri("https://example.com")
-    .body(Flux.concat(
-            FormPartEvent.create("field", "field value"),
-            FilePartEvent.create("file", resource)
-    ), PartEvent.class)
-    .retrieve()
-    .bodyToMono(String.class);
+	Resource resource = ...
+	Mono<String> result = webClient
+		.post()
+		.uri("https://example.com")
+		.body(Flux.concat(
+				FormPartEvent.create("field", "field value"),
+				FilePartEvent.create("file", resource)
+		), PartEvent.class)
+		.retrieve()
+		.bodyToMono(String.class);
 ----

 Kotlin::
 +
 [source,kotlin,indent=0,subs="verbatim,quotes"]
 ----
-var resource: Resource = ...
-var result: Mono<String> = webClient
-	.post()
-	.uri("https://example.com")
-	.body(
-		Flux.concat(
-			FormPartEvent.create("field", "field value"),
-			FilePartEvent.create("file", resource)
+	var resource: Resource = ...
+	var result: Mono<String> = webClient
+		.post()
+		.uri("https://example.com")
+		.body(
+			Flux.concat(
+				FormPartEvent.create("field", "field value"),
+				FilePartEvent.create("file", resource)
+			)
 		)
-	)
-	.retrieve()
-	.bodyToMono()
+		.retrieve()
+		.bodyToMono()
 ----
 ======

@@ -390,29 +390,29 @@ Java::
 +
 [source,java,indent=0,subs="verbatim,quotes"]
 ----
-    HttpClient httpClient = HttpClient.newBuilder()
-        .followRedirects(Redirect.NORMAL)
-        .connectTimeout(Duration.ofSeconds(20))
-        .build();
+	HttpClient httpClient = HttpClient.newBuilder()
+		.followRedirects(Redirect.NORMAL)
+		.connectTimeout(Duration.ofSeconds(20))
+		.build();

-    ClientHttpConnector connector =
-            new JdkClientHttpConnector(httpClient, new DefaultDataBufferFactory());
+	ClientHttpConnector connector =
+			new JdkClientHttpConnector(httpClient, new DefaultDataBufferFactory());

-    WebClient webClient = WebClient.builder().clientConnector(connector).build();
+	WebClient webClient = WebClient.builder().clientConnector(connector).build();
 ----

 Kotlin::
 +
 [source,kotlin,indent=0,subs="verbatim,quotes"]
 ----
-    val httpClient = HttpClient.newBuilder()
-        .followRedirects(Redirect.NORMAL)
-        .connectTimeout(Duration.ofSeconds(20))
-        .build()
+	val httpClient = HttpClient.newBuilder()
+		.followRedirects(Redirect.NORMAL)
+		.connectTimeout(Duration.ofSeconds(20))
+		.build()

-    val connector = JdkClientHttpConnector(httpClient, DefaultDataBufferFactory())
+	val connector = JdkClientHttpConnector(httpClient, DefaultDataBufferFactory())

-    val webClient = WebClient.builder().clientConnector(connector).build()
+	val webClient = WebClient.builder().clientConnector(connector).build()
 ----
 ======

@@ -158,65 +158,65 @@ Java::
 +
 [source,java,indent=0,subs="verbatim,quotes"]
 ----
-public class MultipartExchangeFilterFunction implements ExchangeFilterFunction {
-
-    @Override
-    public Mono<ClientResponse> filter(ClientRequest request, ExchangeFunction next) {
-        if (MediaType.MULTIPART_FORM_DATA.includes(request.headers().getContentType())
-                && (request.method() == HttpMethod.PUT || request.method() == HttpMethod.POST)) {
-            return next.exchange(ClientRequest.from(request).body((outputMessage, context) ->
-                request.body().insert(new BufferingDecorator(outputMessage), context)).build()
-            );
-        } else {
-            return next.exchange(request);
-        }
-    }
-
-    private static final class BufferingDecorator extends ClientHttpRequestDecorator {
-
-        private BufferingDecorator(ClientHttpRequest delegate) {
-            super(delegate);
-        }
-
-        @Override
-        public Mono<Void> writeWith(Publisher<? extends DataBuffer> body) {
-            return DataBufferUtils.join(body).flatMap(buffer -> {
-                getHeaders().setContentLength(buffer.readableByteCount());
-                return super.writeWith(Mono.just(buffer));
-            });
-        }
-    }
-}
+	public class MultipartExchangeFilterFunction implements ExchangeFilterFunction {
+	
+		@Override
+		public Mono<ClientResponse> filter(ClientRequest request, ExchangeFunction next) {
+			if (MediaType.MULTIPART_FORM_DATA.includes(request.headers().getContentType())
+					&& (request.method() == HttpMethod.PUT || request.method() == HttpMethod.POST)) {
+				return next.exchange(ClientRequest.from(request).body((outputMessage, context) ->
+					request.body().insert(new BufferingDecorator(outputMessage), context)).build()
+				);
+			} else {
+				return next.exchange(request);
+			}
+		}
+	
+		private static final class BufferingDecorator extends ClientHttpRequestDecorator {
+	
+			private BufferingDecorator(ClientHttpRequest delegate) {
+				super(delegate);
+			}
+	
+			@Override
+			public Mono<Void> writeWith(Publisher<? extends DataBuffer> body) {
+				return DataBufferUtils.join(body).flatMap(buffer -> {
+					getHeaders().setContentLength(buffer.readableByteCount());
+					return super.writeWith(Mono.just(buffer));
+				});
+			}
+		}
+	}
 ----

 Kotlin::
 +
 [source,kotlin,indent=0,subs="verbatim,quotes"]
 ----
-class MultipartExchangeFilterFunction : ExchangeFilterFunction {
-
-    override fun filter(request: ClientRequest, next: ExchangeFunction): Mono<ClientResponse> {
-        return if (MediaType.MULTIPART_FORM_DATA.includes(request.headers().getContentType())
-            && (request.method() == HttpMethod.PUT || request.method() == HttpMethod.POST)) {
-            next.exchange(ClientRequest.from(request)
-                .body { message, context -> request.body().insert(BufferingDecorator(message), context) }
-                .build())
-        }
-        else {
-            next.exchange(request)
-        }
-
-    }
-
-    private class BufferingDecorator(delegate: ClientHttpRequest) : ClientHttpRequestDecorator(delegate) {
-        override fun writeWith(body: Publisher<out DataBuffer>): Mono<Void> {
-            return DataBufferUtils.join(body)
-                .flatMap {
-                    headers.contentLength = it.readableByteCount().toLong()
-                    super.writeWith(Mono.just(it))
-                }
-        }
-    }
-}
+	class MultipartExchangeFilterFunction : ExchangeFilterFunction {
+	
+		override fun filter(request: ClientRequest, next: ExchangeFunction): Mono<ClientResponse> {
+			return if (MediaType.MULTIPART_FORM_DATA.includes(request.headers().getContentType())
+				&& (request.method() == HttpMethod.PUT || request.method() == HttpMethod.POST)) {
+				next.exchange(ClientRequest.from(request)
+					.body { message, context -> request.body().insert(BufferingDecorator(message), context) }
+					.build())
+			}
+			else {
+				next.exchange(request)
+			}
+	
+		}
+	
+		private class BufferingDecorator(delegate: ClientHttpRequest) : ClientHttpRequestDecorator(delegate) {
+			override fun writeWith(body: Publisher<out DataBuffer>): Mono<Void> {
+				return DataBufferUtils.join(body)
+					.flatMap {
+						headers.contentLength = it.readableByteCount().toLong()
+						super.writeWith(Mono.just(it))
+					}
+			}
+		}
+	}
 ----
-======
+======
@@ -1,5 +1,6 @@
 [[webflux-websocket]]
 = WebSockets
+
 [.small]#xref:web/websocket.adoc[See equivalent in the Servlet stack]#

 This part of the reference documentation covers support for reactive-stack WebSocket
@@ -206,14 +207,14 @@ Kotlin::
 	class ExampleHandler : WebSocketHandler {

 		override fun handle(session: WebSocketSession): Mono<Void> {
-			return session.receive()            // <1>
+			return session.receive()			// <1>
 					.doOnNext {
 						// ...					// <2>
 					}
 					.concatMap {
 						// ...					// <3>
 					}
-					.then()                     // <4>
+					.then()						// <4>
 		}
 	}
 ----
@@ -267,16 +268,16 @@ Kotlin::

 		override fun handle(session: WebSocketSession): Mono<Void> {

-			val output = session.receive()                      // <1>
+			val output = session.receive()						// <1>
 					.doOnNext {
 						// ...
 					}
 					.concatMap {
 						// ...
 					}
-					.map { session.textMessage("Echo $it") }    // <2>
+					.map { session.textMessage("Echo $it") }	// <2>

-			return session.send(output)                         // <3>
+			return session.send(output)							// <3>
 		}
 	}
 ----
@@ -149,7 +149,7 @@ Java::
 			DateTimeFormatterRegistrar registrar = new DateTimeFormatterRegistrar();
 			registrar.setUseIsoFormat(true);
 			registrar.registerFormatters(registry);
-      	}
+		}
 	}
 ----

@@ -62,7 +62,7 @@ Java::
 ----
 	class Account {

-	    private final String firstName;
+		private final String firstName;

 		public Account(@BindParam("first-name") String firstName) {
 			this.firstName = firstName;
@@ -93,8 +93,8 @@ Java::
 ----
 	@ModelAttribute
 	public void addAccount(@RequestParam String number) {
-	    Mono<Account> accountMono = accountRepository.findAccount(number);
-	    model.addAttribute("account", accountMono);
+		Mono<Account> accountMono = accountRepository.findAccount(number);
+		model.addAttribute("account", accountMono);
 	}

 	@PostMapping("/accounts")
@@ -234,8 +234,8 @@ Kotlin::
 --

 URI path patterns can also have embedded `${...}` placeholders that are resolved on startup
-through `PropertySourcesPlaceholderConfigurer` against local, system, environment, and
-other property sources. You can use this to, for example, parameterize a base URL based on
+by using `PropertySourcesPlaceholderConfigurer` against local, system, environment, and
+other property sources. You can use this, for example, to parameterize a base URL based on
 some external configuration.

 NOTE: Spring WebFlux uses `PathPattern` and the `PathPatternParser` for URI path matching support.
@@ -605,9 +605,4 @@ For method parameters and returns values, generally, `@HttpExchange` supports a
 subset of the method parameters that `@RequestMapping` does. Notably, it excludes any
 server-side specific parameter types. For details, see the list for
 xref:integration/rest-clients.adoc#rest-http-interface-method-parameters[@HttpExchange] and
-xref:web/webflux/controller/ann-methods/arguments.adoc[@RequestMapping].
-
-`@HttpExchange` also supports a `headers()` parameter which accepts `"name=value"`-like
-pairs like in `@RequestMapping(headers={})` on the client side. On the server side,
-this extends to the full syntax that
-xref:#webflux-ann-requestmapping-params-and-headers[`@RequestMapping`] supports.
+xref:web/webflux/controller/ann-methods/arguments.adoc[@RequestMapping].
@@ -57,7 +57,7 @@ locale and language specific resource bundles.
 For further custom handling of method validation errors, you can extend
 `ResponseEntityExceptionHandler` or use an `@ExceptionHandler` method in a controller
 or in a `@ControllerAdvice`, and handle `HandlerMethodValidationException` directly.
-The exception contains a list of``ParameterValidationResult``s that group validation errors
+The exception contains a list of ``ParameterValidationResult``s that group validation errors
 by method parameter. You can either iterate over those, or provide a visitor with callback
 methods by controller method parameter type:

@@ -104,21 +104,21 @@ Kotlin::

 		override fun requestHeader(requestHeader: RequestHeader, result: ParameterValidationResult) {
 				// ...
-        }
+		}

 		override fun requestParam(requestParam: RequestParam?, result: ParameterValidationResult) {
 				// ...
-        }
+		}

 		override fun modelAttribute(modelAttribute: ModelAttribute?, errors: ParameterErrors) {
 				// ...
-        }
+		}

 		// ...

 		override fun other(result: ParameterValidationResult) {
 				// ...
-        }
+		}
 	})
 ----
 ======
@@ -101,7 +101,7 @@ On that foundation, Spring WebFlux provides a choice of two programming models:
 from the `spring-web` module. Both Spring MVC and WebFlux controllers support reactive
 (Reactor and RxJava) return types, and, as a result, it is not easy to tell them apart. One notable
 difference is that WebFlux also supports reactive `@RequestBody` arguments.
-* <<webflux-fn>>: Lambda-based, lightweight, and functional programming model. You can think of
+* xref:web/webflux-functional.adoc[Functional Endpoints]: Lambda-based, lightweight, and functional programming model. You can think of
 this as a small library or a set of utilities that an application can use to route and
 handle requests. The big difference with annotated controllers is that the application
 is in charge of request handling from start to finish versus declaring intent through
@@ -782,8 +782,8 @@ Java::
 ----
 	WebClient webClient = WebClient.builder()
 			.codecs(configurer -> {
-					CustomDecoder decoder = new CustomDecoder();
-                    configurer.customCodecs().registerWithDefaultConfig(decoder);
+				CustomDecoder decoder = new CustomDecoder();
+				configurer.customCodecs().registerWithDefaultConfig(decoder);
 			})
 			.build();
 ----
@@ -794,8 +794,8 @@ Kotlin::
 ----
 	val webClient = WebClient.builder()
 			.codecs({ configurer ->
-					val decoder = CustomDecoder()
-            		configurer.customCodecs().registerWithDefaultConfig(decoder)
+				val decoder = CustomDecoder()
+				configurer.customCodecs().registerWithDefaultConfig(decoder)
 			 })
 			.build()
 ----
@@ -1,5 +1,6 @@
 [[mvc-cors]]
 = CORS
+
 [.small]#xref:web/webflux-cors.adoc[See equivalent in the Reactive stack]#

 Spring MVC lets you handle CORS (Cross-Origin Resource Sharing). This section
@@ -1,6 +1,7 @@
 [[webmvc-fn]]
 = Functional Endpoints
-[.small]#<<web-reactive.adoc#webflux-fn, See equivalent in the Reactive stack>>#
+
+[.small]#xref:web/webflux-functional.adoc[See equivalent in the Reactive stack]#

 Spring Web MVC includes WebMvc.fn, a lightweight functional programming model in which functions
 are used to route and handle requests and contracts are designed for immutability.
@@ -275,7 +276,7 @@ ServerResponse.async(asyncResponse);
 ----
 ======

-https://www.w3.org/TR/eventsource/[Server-Sent Events] can be provided via the
+https://html.spec.whatwg.org/multipage/server-sent-events.html[Server-Sent Events] can be provided via the
 static `sse` method on `ServerResponse`. The builder provided by that method
 allows you to send Strings, or other objects as JSON. For example:

@@ -780,7 +781,7 @@ Java::
 +
 [source,java,indent=0,subs="verbatim,quotes"]
 ----
-    ClassPathResource index = new ClassPathResource("static/index.html");
+	ClassPathResource index = new ClassPathResource("static/index.html");
 	List<String> extensions = List.of("js", "css", "ico", "png", "jpg", "gif");
 	RequestPredicate spaPredicate = path("/api/**").or(path("/error")).or(pathExtension(extensions::contains)).negate();
 	RouterFunction<ServerResponse> redirectToIndex = route()
@@ -792,7 +793,7 @@ Kotlin::
 +
 [source,kotlin,indent=0,subs="verbatim,quotes"]
 ----
-    val redirectToIndex = router {
+	val redirectToIndex = router {
 		val index = ClassPathResource("static/index.html")
 		val extensions = listOf("js", "css", "ico", "png", "jpg", "gif")
 		val spaPredicate = !(path("/api/**") or path("/error") or
@@ -813,16 +814,16 @@ Java::
 +
 [source,java,indent=0,subs="verbatim,quotes"]
 ----
-    Resource location = new FileUrlResource("public-resources/");
-    RouterFunction<ServerResponse> resources = RouterFunctions.resources("/resources/**", location);
+	Resource location = new FileUrlResource("public-resources/");
+	RouterFunction<ServerResponse> resources = RouterFunctions.resources("/resources/**", location);
 ----

 Kotlin::
 +
 [source,kotlin,indent=0,subs="verbatim,quotes"]
 ----
-    val location = FileUrlResource("public-resources/")
-    val resources = router { resources("/resources/**", location) }
+	val location = FileUrlResource("public-resources/")
+	val resources = router { resources("/resources/**", location) }
 ----
 ======

@@ -1,6 +1,7 @@
 [[mvc-view]]
 = View Technologies
 :page-section-summary-toc: 1
+
 [.small]#xref:web/webflux-view.adoc[See equivalent in the Reactive stack]#

 The rendering of views in Spring MVC is pluggable. Whether you decide to use
@@ -130,6 +130,7 @@ the `Configuration` object.

 [[mvc-view-freemarker-forms]]
 == Form Handling
+[.small]#xref:web/webflux-view.adoc#webflux-view-freemarker-forms[See equivalent in the Reactive stack]#

 Spring provides a tag library for use in JSPs that contains, among others, a
 `<spring:bind/>` element. This element primarily lets forms display values from
@@ -13,9 +13,9 @@ templating libraries on different script engines:
 |Scripting Library |Scripting Engine
 |https://handlebarsjs.com/[Handlebars] |https://openjdk.java.net/projects/nashorn/[Nashorn]
 |https://mustache.github.io/[Mustache] |https://openjdk.java.net/projects/nashorn/[Nashorn]
-|https://facebook.github.io/react/[React] |https://openjdk.java.net/projects/nashorn/[Nashorn]
-|https://www.embeddedjs.com/[EJS] |https://openjdk.java.net/projects/nashorn/[Nashorn]
-|https://www.stuartellis.name/articles/erb/[ERB] |https://www.jruby.org[JRuby]
+|https://react.dev/[React] |https://openjdk.java.net/projects/nashorn/[Nashorn]
+|https://ejs.co/[EJS] |https://openjdk.java.net/projects/nashorn/[Nashorn]
+|https://docs.ruby-lang.org/en/master/ERB.html[ERB] |https://www.jruby.org[JRuby]
 |https://docs.python.org/2/library/string.html#template-strings[String templates] |https://www.jython.org/[Jython]
 |https://github.com/sdeleuze/kotlin-script-templating[Kotlin Script templating] |{kotlin-site}[Kotlin]
 |===
@@ -47,7 +47,7 @@ through https://www.webjars.org/[WebJars].

 [[mvc-view-script-integrate]]
 == Script Templates
-[.small]#xref:web/webflux-view.adoc#webflux-view-script[See equivalent in the Reactive stack]#
+[.small]#xref:web/webflux-view.adoc#webflux-view-script-integrate[See equivalent in the Reactive stack]#

 You can declare a `ScriptTemplateConfigurer` bean to specify the script engine to use,
 the script files to load, what function to call to render templates, and so on.
@@ -30,7 +30,7 @@ available through the `ServletRequest.getParameter{asterisk}()` family of method



-[[forwarded-headers]]
+[[filters-forwarded-headers]]
 == Forwarded Headers
 [.small]#xref:web/webflux/reactive-spring.adoc#webflux-forwarded-headers[See equivalent in the Reactive stack]#

@@ -281,7 +281,7 @@ invokes the configured exception resolvers and completes the request.
 === SSE

 `SseEmitter` (a subclass of `ResponseBodyEmitter`) provides support for
-https://www.w3.org/TR/eventsource/[Server-Sent Events], where events sent from the server
+https://html.spec.whatwg.org/multipage/server-sent-events.html[Server-Sent Events], where events sent from the server
 are formatted according to the W3C SSE specification. To produce an SSE
 stream from a controller, return `SseEmitter`, as the following example shows:

@@ -37,7 +37,7 @@ already set.
 "application/problem+json" over "application/json" when rendering a `ProblemDetail`,
 and also falls back on it if no compatible media type is found.

-To enable RFC 9457 responses for Spring WebFlux exceptions and for any
+To enable RFC 9457 responses for Spring MVC exceptions and for any
 `ErrorResponseException`, extend `ResponseEntityExceptionHandler` and declare it as an
 xref:web/webmvc/mvc-controller/ann-advice.adoc[@ControllerAdvice] in Spring configuration. The handler
 has an `@ExceptionHandler` method that handles any `ErrorResponse` exception, which
@@ -97,7 +97,7 @@ Java::
 ----
 	class Account {

-	    private final String firstName;
+		private final String firstName;

 		public Account(@BindParam("first-name") String firstName) {
 			this.firstName = firstName;
@@ -57,7 +57,7 @@ locale and language specific resource bundles.
 For further custom handling of method validation errors, you can extend
 `ResponseEntityExceptionHandler` or use an `@ExceptionHandler` method in a controller
 or in a `@ControllerAdvice`, and handle `HandlerMethodValidationException` directly.
-The exception contains a list of``ParameterValidationResult``s that group validation errors
+The exception contains a list of ``ParameterValidationResult``s that group validation errors
 by method parameter. You can either iterate over those, or provide a visitor with callback
 methods by controller method parameter type:

@@ -73,12 +73,12 @@ Java::

 		@Override
 		public void requestHeader(RequestHeader requestHeader, ParameterValidationResult result) {
-				// ...
+			// ...
 		}

 		@Override
 		public void requestParam(@Nullable RequestParam requestParam, ParameterValidationResult result) {
-				// ...
+			// ...
 		}

 		@Override
@@ -88,7 +88,7 @@ Java::

 		@Override
 		public void other(ParameterValidationResult result) {
-				// ...
+			// ...
 		}
 	});
 ----
@@ -103,22 +103,22 @@ Kotlin::
 	ex.visitResults(object : HandlerMethodValidationException.Visitor {

 		override fun requestHeader(requestHeader: RequestHeader, result: ParameterValidationResult) {
-				// ...
-        }
+			// ...
+		}

 		override fun requestParam(requestParam: RequestParam?, result: ParameterValidationResult) {
-				// ...
-        }
+			// ...
+		}

 		override fun modelAttribute(modelAttribute: ModelAttribute?, errors: ParameterErrors) {
-				// ...
-        }
+			// ...
+		}

 		// ...

 		override fun other(result: ParameterValidationResult) {
-				// ...
-        }
+			// ...
+		}
 	})
 ----
 ======
@@ -13,7 +13,7 @@ reference documentation, including:
 * {docs-spring-security}/features/exploits/csrf.html#csrf-protection[CSRF protection]
 * {docs-spring-security}/features/exploits/headers.html[Security Response Headers]

-https://hdiv.org/[HDIV] is another web security framework that integrates with Spring MVC.
+https://github.com/hdiv/hdiv[HDIV] is another web security framework that integrates with Spring MVC.



@@ -1,6 +1,7 @@
 [[websocket]]
 = WebSockets
 :page-section-summary-toc: 1
+
 [.small]#xref:web/webflux-websocket.adoc[See equivalent in the Reactive stack]#

 This part of the reference documentation covers support for Servlet stack, WebSocket
@@ -22,11 +22,11 @@ The following example code is based on it:
 [source,javascript,indent=0,subs="verbatim,quotes"]
 ----
 	const stompClient = new StompJs.Client({
-        brokerURL: 'ws://domain.com/portfolio',
-        onConnect: () => {
-            // ...
-        }
-    });
+		brokerURL: 'ws://domain.com/portfolio',
+		onConnect: () => {
+			// ...
+		}
+	});
 ----

 Alternatively, if you connect through SockJS, you can enable the
@@ -47,5 +47,3 @@ interactive web application] -- a getting started guide.
 * https://github.com/rstoyanchev/spring-websocket-portfolio[Stock Portfolio] -- a sample
 application.

-
-
@@ -19,6 +19,6 @@ from where they are handled according to their destination prefix. As the channe
 a `ThreadPoolExecutor`, messages are processed in different threads, and the resulting sequence
 of handling may not match the exact order in which they were received.

-To enable ordered publishing, set the `setPreserveReceiveOrder` flag as follows:
+To enable ordered receiving, set the `setPreserveReceiveOrder` flag as follows:

 include-code::./ReceiveOrderWebSocketConfiguration[tag=snippet,indent=0]
@@ -5,6 +5,7 @@
    "@antora/collector-extension": "1.0.0-alpha.3",
    "@asciidoctor/tabs": "1.0.0-beta.6",
    "@springio/antora-extensions": "1.14.2",
+    "fast-xml-parser": "4.5.2",
    "@springio/asciidoctor-extensions": "1.0.0-alpha.10"
  }
 }
@@ -0,0 +1,105 @@
+/*
+ * Copyright 2002-2025 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.docs.integration.resthttpinterface.customresolver;
+
+import java.util.List;
+
+import org.springframework.core.MethodParameter;
+import org.springframework.web.client.RestClient;
+import org.springframework.web.client.support.RestClientAdapter;
+import org.springframework.web.service.annotation.GetExchange;
+import org.springframework.web.service.invoker.HttpRequestValues;
+import org.springframework.web.service.invoker.HttpServiceArgumentResolver;
+import org.springframework.web.service.invoker.HttpServiceProxyFactory;
+
+public class CustomHttpServiceArgumentResolver {
+
+	// tag::httpinterface[]
+	public interface RepositoryService {
+
+		@GetExchange("/repos/search")
+		List<Repository> searchRepository(Search search);
+
+	}
+	// end::httpinterface[]
+
+	class Sample {
+
+		void sample() {
+			// tag::usage[]
+			RestClient restClient = RestClient.builder().baseUrl("https://api.github.com/").build();
+			RestClientAdapter adapter = RestClientAdapter.create(restClient);
+			HttpServiceProxyFactory factory = HttpServiceProxyFactory
+					.builderFor(adapter)
+					.customArgumentResolver(new SearchQueryArgumentResolver())
+					.build();
+			RepositoryService repositoryService = factory.createClient(RepositoryService.class);
+
+			Search search = Search.create()
+					.owner("spring-projects")
+					.language("java")
+					.query("rest")
+					.build();
+			List<Repository> repositories = repositoryService.searchRepository(search);
+			// end::usage[]
+		}
+
+	}
+
+	// tag::argumentresolver[]
+	static class SearchQueryArgumentResolver implements HttpServiceArgumentResolver {
+		@Override
+		public boolean resolve(Object argument, MethodParameter parameter, HttpRequestValues.Builder requestValues) {
+			if (parameter.getParameterType().equals(Search.class)) {
+				Search search = (Search) argument;
+				requestValues.addRequestParameter("owner", search.owner());
+				requestValues.addRequestParameter("language", search.language());
+				requestValues.addRequestParameter("query", search.query());
+				return true;
+			}
+			return false;
+		}
+	}
+	// end::argumentresolver[]
+
+
+	record Search (String query, String owner, String language) {
+
+		static Builder create() {
+			return new Builder();
+		}
+
+		static class Builder {
+
+			Builder query(String query) { return this;}
+
+			Builder owner(String owner) { return this;}
+
+			Builder language(String language) { return this;}
+
+			Search build() {
+				return new Search(null, null, null);
+			}
+		}
+
+	}
+
+	record Repository(String name) {
+
+	}
+
+}
@@ -0,0 +1,78 @@
+/*
+ * Copyright 2002-2025 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.docs.integration.resthttpinterface.customresolver
+
+import org.springframework.core.MethodParameter
+import org.springframework.web.client.RestClient
+import org.springframework.web.client.support.RestClientAdapter
+import org.springframework.web.service.annotation.GetExchange
+import org.springframework.web.service.invoker.HttpRequestValues
+import org.springframework.web.service.invoker.HttpServiceArgumentResolver
+import org.springframework.web.service.invoker.HttpServiceProxyFactory
+
+class CustomHttpServiceArgumentResolver {
+
+	// tag::httpinterface[]
+	interface RepositoryService {
+
+		@GetExchange("/repos/search")
+		fun searchRepository(search: Search): List<Repository>
+
+	}
+	// end::httpinterface[]
+
+	class Sample {
+		fun sample() {
+			// tag::usage[]
+			val restClient = RestClient.builder().baseUrl("https://api.github.com/").build()
+			val adapter = RestClientAdapter.create(restClient)
+			val factory = HttpServiceProxyFactory
+				.builderFor(adapter)
+				.customArgumentResolver(SearchQueryArgumentResolver())
+				.build()
+			val repositoryService = factory.createClient<RepositoryService>(RepositoryService::class.java)
+
+			val search = Search(owner = "spring-projects", language = "java", query = "rest")
+			val repositories = repositoryService.searchRepository(search)
+			// end::usage[]
+			repositories.size
+		}
+	}
+
+	// tag::argumentresolver[]
+	class SearchQueryArgumentResolver : HttpServiceArgumentResolver {
+		override fun resolve(
+			argument: Any?,
+			parameter: MethodParameter,
+			requestValues: HttpRequestValues.Builder
+		): Boolean {
+			if (parameter.getParameterType() == Search::class.java) {
+				val search = argument as Search
+				requestValues.addRequestParameter("owner", search.owner)
+					.addRequestParameter("language", search.language)
+					.addRequestParameter("query", search.query)
+				return true
+			}
+			return false
+		}
+	}
+	// end::argumentresolver[]
+
+	data class Search(val query: String, val owner: String, val language: String)
+
+	data class Repository(val name: String)
+}
@@ -7,31 +7,31 @@ javaPlatform {
 }

 dependencies {
-	api(platform("com.fasterxml.jackson:jackson-bom:2.18.1"))
-	api(platform("io.micrometer:micrometer-bom:1.14.0"))
-	api(platform("io.netty:netty-bom:4.1.115.Final"))
+	api(platform("com.fasterxml.jackson:jackson-bom:2.18.4"))
+	api(platform("io.micrometer:micrometer-bom:1.14.7"))
+	api(platform("io.netty:netty-bom:4.1.121.Final"))
 	api(platform("io.netty:netty5-bom:5.0.0.Alpha5"))
-	api(platform("io.projectreactor:reactor-bom:2024.0.0"))
-	api(platform("io.rsocket:rsocket-bom:1.1.4"))
-	api(platform("org.apache.groovy:groovy-bom:4.0.24"))
+	api(platform("io.projectreactor:reactor-bom:2024.0.6"))
+	api(platform("io.rsocket:rsocket-bom:1.1.5"))
+	api(platform("org.apache.groovy:groovy-bom:4.0.26"))
 	api(platform("org.apache.logging.log4j:log4j-bom:2.21.1"))
-	api(platform("org.assertj:assertj-bom:3.26.3"))
-	api(platform("org.eclipse.jetty:jetty-bom:12.0.15"))
-	api(platform("org.eclipse.jetty.ee10:jetty-ee10-bom:12.0.15"))
+	api(platform("org.assertj:assertj-bom:3.27.3"))
+	api(platform("org.eclipse.jetty:jetty-bom:12.0.21"))
+	api(platform("org.eclipse.jetty.ee10:jetty-ee10-bom:12.0.21"))
 	api(platform("org.jetbrains.kotlinx:kotlinx-coroutines-bom:1.8.1"))
 	api(platform("org.jetbrains.kotlinx:kotlinx-serialization-bom:1.6.3"))
-	api(platform("org.junit:junit-bom:5.11.3"))
-	api(platform("org.mockito:mockito-bom:5.14.2"))
+	api(platform("org.junit:junit-bom:5.12.2"))
+	api(platform("org.mockito:mockito-bom:5.17.0"))

 	constraints {
 		api("com.fasterxml:aalto-xml:1.3.2")
 		api("com.fasterxml.woodstox:woodstox-core:6.7.0")
-		api("com.github.ben-manes.caffeine:caffeine:3.1.8")
+		api("com.github.ben-manes.caffeine:caffeine:3.2.0")
 		api("com.github.librepdf:openpdf:1.3.43")
 		api("com.google.code.findbugs:findbugs:3.0.1")
 		api("com.google.code.findbugs:jsr305:3.0.2")
-		api("com.google.code.gson:gson:2.11.0")
-		api("com.google.protobuf:protobuf-java-util:4.28.3")
+		api("com.google.code.gson:gson:2.12.1")
+		api("com.google.protobuf:protobuf-java-util:4.30.2")
 		api("com.h2database:h2:2.3.232")
 		api("com.jayway.jsonpath:json-path:2.9.0")
 		api("com.oracle.database.jdbc:ojdbc11:21.9.0.0")
@@ -43,7 +43,7 @@ dependencies {
 		api("com.sun.xml.bind:jaxb-core:3.0.2")
 		api("com.sun.xml.bind:jaxb-impl:3.0.2")
 		api("com.sun.xml.bind:jaxb-xjc:3.0.2")
-		api("com.thoughtworks.qdox:qdox:2.1.0")
+		api("com.thoughtworks.qdox:qdox:2.2.0")
 		api("com.thoughtworks.xstream:xstream:1.4.21")
 		api("commons-io:commons-io:2.15.0")
 		api("de.bechte.junit:junit-hierarchicalcontextrunner:4.12.2")
@@ -54,11 +54,11 @@ dependencies {
 		api("io.r2dbc:r2dbc-h2:1.0.0.RELEASE")
 		api("io.r2dbc:r2dbc-spi-test:1.0.0.RELEASE")
 		api("io.r2dbc:r2dbc-spi:1.0.0.RELEASE")
-		api("io.reactivex.rxjava3:rxjava:3.1.9")
+		api("io.reactivex.rxjava3:rxjava:3.1.10")
 		api("io.smallrye.reactive:mutiny:1.10.0")
 		api("io.undertow:undertow-core:2.3.18.Final")
-		api("io.undertow:undertow-servlet:2.3.17.Final")
-		api("io.undertow:undertow-websockets-jsr:2.3.17.Final")
+		api("io.undertow:undertow-servlet:2.3.18.Final")
+		api("io.undertow:undertow-websockets-jsr:2.3.18.Final")
 		api("io.vavr:vavr:0.10.4")
 		api("jakarta.activation:jakarta.activation-api:2.0.1")
 		api("jakarta.annotation:jakarta.annotation-api:2.0.0")
@@ -100,8 +100,8 @@ dependencies {
 		api("org.apache.derby:derby:10.16.1.1")
 		api("org.apache.derby:derbyclient:10.16.1.1")
 		api("org.apache.derby:derbytools:10.16.1.1")
-		api("org.apache.httpcomponents.client5:httpclient5:5.4.1")
-		api("org.apache.httpcomponents.core5:httpcore5-reactive:5.3.1")
+		api("org.apache.httpcomponents.client5:httpclient5:5.4.4")
+		api("org.apache.httpcomponents.core5:httpcore5-reactive:5.3.4")
 		api("org.apache.poi:poi-ooxml:5.2.5")
 		api("org.apache.tomcat.embed:tomcat-embed-core:10.1.28")
 		api("org.apache.tomcat.embed:tomcat-embed-websocket:10.1.28")
@@ -110,18 +110,18 @@ dependencies {
 		api("org.aspectj:aspectjrt:1.9.22.1")
 		api("org.aspectj:aspectjtools:1.9.22.1")
 		api("org.aspectj:aspectjweaver:1.9.22.1")
-		api("org.awaitility:awaitility:4.2.2")
+		api("org.awaitility:awaitility:4.3.0")
 		api("org.bouncycastle:bcpkix-jdk18on:1.72")
 		api("org.codehaus.jettison:jettison:1.5.4")
 		api("org.crac:crac:1.4.0")
 		api("org.dom4j:dom4j:2.1.4")
-		api("org.easymock:easymock:5.4.0")
-		api("org.eclipse.jetty:jetty-reactive-httpclient:4.0.8")
+		api("org.easymock:easymock:5.5.0")
+		api("org.eclipse.jetty:jetty-reactive-httpclient:4.0.9")
 		api("org.eclipse.persistence:org.eclipse.persistence.jpa:3.0.4")
 		api("org.eclipse:yasson:2.0.4")
 		api("org.ehcache:ehcache:3.10.8")
 		api("org.ehcache:jcache:1.0.1")
-		api("org.freemarker:freemarker:2.3.33")
+		api("org.freemarker:freemarker:2.3.34")
 		api("org.glassfish.external:opendmk_jmxremote_optional_jar:1.0-b01-ea")
 		api("org.glassfish:jakarta.el:4.0.2")
 		api("org.glassfish.tyrus:tyrus-container-servlet:2.1.3")
@@ -130,24 +130,24 @@ dependencies {
 		api("org.hibernate:hibernate-core-jakarta:5.6.15.Final")
 		api("org.hibernate:hibernate-validator:7.0.5.Final")
 		api("org.hsqldb:hsqldb:2.7.4")
-		api("org.htmlunit:htmlunit:4.6.0")
+		api("org.htmlunit:htmlunit:4.10.0")
 		api("org.javamoney:moneta:1.4.4")
-		api("org.jruby:jruby:9.4.9.0")
+		api("org.jruby:jruby:9.4.12.0")
 		api("org.junit.support:testng-engine:1.0.5")
 		api("org.mozilla:rhino:1.7.15")
 		api("org.ogce:xpp3:1.1.6")
-		api("org.python:jython-standalone:2.7.3")
+		api("org.python:jython-standalone:2.7.4")
 		api("org.quartz-scheduler:quartz:2.3.2")
-		api("org.seleniumhq.selenium:htmlunit3-driver:4.26.0")
-		api("org.seleniumhq.selenium:selenium-java:4.26.0")
+		api("org.seleniumhq.selenium:htmlunit3-driver:4.29.0")
+		api("org.seleniumhq.selenium:selenium-java:4.29.0")
 		api("org.skyscreamer:jsonassert:1.5.3")
-		api("org.slf4j:slf4j-api:2.0.16")
-		api("org.testng:testng:7.10.2")
+		api("org.slf4j:slf4j-api:2.0.17")
+		api("org.testng:testng:7.11.0")
 		api("org.webjars:underscorejs:1.8.3")
-		api("org.webjars:webjars-locator-core:0.55")
-		api("org.webjars:webjars-locator-lite:1.0.0")
+		api("org.webjars:webjars-locator-core:0.59")
+		api("org.webjars:webjars-locator-lite:1.1.0")
 		api("org.xmlunit:xmlunit-assertj:2.10.0")
 		api("org.xmlunit:xmlunit-matchers:2.10.0")
-		api("org.yaml:snakeyaml:2.3")
+		api("org.yaml:snakeyaml:2.4")
 	}
 }
--- a/Show More
+++ b/Show More