Make base classes for client requests public

AbstractBufferingClientHttpRequest and AbstractStreamingClientHttpRequest

Closes gh-36501

spring-web/src/main/java/org/springframework/http/client/AbstractBufferingClientHttpRequest.java

@@ -31,18 +31,18 @@ import org.springframework.util.StreamUtils;
  * @author Arjen Poutsma
  * @since 3.0.6
  */
-abstract class AbstractBufferingClientHttpRequest extends AbstractClientHttpRequest {
+public abstract class AbstractBufferingClientHttpRequest extends AbstractClientHttpRequest {
 
 	private final FastByteArrayOutputStream bufferedOutput = new FastByteArrayOutputStream(1024);
 
 
 	@Override
-	protected OutputStream getBodyInternal(HttpHeaders headers) throws IOException {
+	protected final OutputStream getBodyInternal(HttpHeaders headers) {
 		return this.bufferedOutput;
 	}
 
 	@Override
-	protected ClientHttpResponse executeInternal(HttpHeaders headers) throws IOException {
+	protected final ClientHttpResponse executeInternal(HttpHeaders headers) throws IOException {
 		byte[] bytes = this.bufferedOutput.toByteArrayUnsafe();
 		if (headers.getContentLength() < 0) {
 			headers.setContentLength(bytes.length);
@@ -70,7 +70,7 @@ abstract class AbstractBufferingClientHttpRequest extends AbstractClientHttpRequ
 	 * @throws IOException in case of I/O errors from execution
 	 * @since 7.0
 	 */
-	protected ClientHttpResponse executeWithRequest(
+	final ClientHttpResponse executeWithRequestAndBody(
 			ClientHttpRequest request, byte[] bufferedOutput, boolean bufferResponse) throws IOException {
 
 		if (bufferedOutput.length > 0) {

spring-web/src/main/java/org/springframework/http/client/AbstractStreamingClientHttpRequest.java

@@ -41,7 +41,7 @@ import org.springframework.util.FastByteArrayOutputStream;
  * @author Rossen Stoyanchev
  * @since 6.1
  */
-abstract class AbstractStreamingClientHttpRequest extends AbstractClientHttpRequest
+public abstract class AbstractStreamingClientHttpRequest extends AbstractClientHttpRequest
 		implements StreamingHttpOutputMessage {
 
 	private @Nullable Body body;

spring-web/src/main/java/org/springframework/http/client/BufferingClientHttpRequestWrapper.java

@@ -51,7 +51,7 @@ final class BufferingClientHttpRequestWrapper extends AbstractBufferingClientHtt
 	@Override
 	protected ClientHttpResponse executeInternal(HttpHeaders headers, byte[] bufferedOutput) throws IOException {
 		this.request.getHeaders().putAll(headers);
-		return executeWithRequest(this.request, bufferedOutput, true);
+		return executeWithRequestAndBody(this.request, bufferedOutput, true);
 	}
 
 }

spring-web/src/main/java/org/springframework/http/client/InterceptingClientHttpRequest.java

@@ -99,7 +99,7 @@ class InterceptingClientHttpRequest extends AbstractBufferingClientHttpRequest {
 			ClientHttpRequest delegate = this.requestFactory.createRequest(request.getURI(), request.getMethod());
 			request.getHeaders().forEach((key, value) -> delegate.getHeaders().addAll(key, value));
 			request.getAttributes().forEach((key, value) -> delegate.getAttributes().put(key, value));
-			return executeWithRequest(delegate, body, shouldBufferResponse(request));
+			return executeWithRequestAndBody(delegate, body, shouldBufferResponse(request));
 		}
 	}