Historically, we have rarely intentionally thrown a
NullPointerException in the Spring Framework. Instead, we prefer to
throw either an IllegalArgumentException or IllegalStateException
instead of a NullPointerException.
However, changes to the code in recent times have introduced the use of
Objects.requireNonNull(Object) which throws a NullPointerException
without an explicit error message.
The latter ends up providing less context than a NullPointerException
thrown by the JVM (since Java 14) due to actually de-referencing a
null-pointer. See https://openjdk.org/jeps/358.
In light of that, this commit revises our current use of
Objects.requireNonNull(Object) by removing it or replacing it with
Assert.notNull().
However, we still use Objects.requireNonNull(T, String) in a few places
where we are required to throw a NullPointerException in order to
comply with a third-party contract such as Reactive Streams.
Closes gh-32430
This commit upgrades to a major new release of HtmlUnit. This is a
breaking change as HtmlUnit 3 moves to a `org.htmlunit` package and
calling code needs to be restructured.
Our use of Selenium has been adapted accordingly, moving to Selenium
3, using the new org.seleniumhq.selenium:htmlunit3-driver integration.
Closes gh-30392
This commit introduces two sets of annotations (`@TestBean` on one side
and `MockitoBean`/`MockitoSpyBean` on the other side), as well as an
extension mecanism based on the `@BeanOverride` meta-annotation.
Extension implementors are expected to only provide an annotation,
a BeanOverrideProcessor implementation and an OverrideMetadata subclass.
Closes gh-29917.
Add helpers to CollectionUtils for building HashSets and LinkedHashSets
that can hold an expected number of elements without needing to
resize/rehash.
Closes gh-32291
This commit removes the previous implementation in favor of the new
PlaceholderParser. The only noticeable side effect is that the exception
is no longer an IllegalArgumentException, but rather the dedicated
PlaceholderResolutionException.
See gh-9628
This commit improves jsonpath support in WebTestClient by detecting
a suitable json encoder/decoder that can be applied to assert more
complex data structure.
Closes gh-31653
This commit improves JsonPathExpectationsHelper to allow a custom json
path configuration to be defined. The primary objective of a custom
configuration is to specify a custom mapper that can deserialize complex
object structure.
As part of this commit, it is now possible to invoke a Matcher against
a type that holds generic information, using a regular
ParameterizedTypeReference.
Given that the existing constructor takes a vararg of Object, this
commit also deprecates this constructor in favor of formatting the
expression String upfront.
Closes gh-31651
This commit updates ContentRequestMatchers#multipartData
Javadoc to mention Tomcat fork of Commons FileUpload library
instead of the original variant.
It also adds a similar note to
ContentRequestMatchers#multipartDataContains.
Closes gh-31988
This commit adds Javadoc to the `getContentLength` method of
`MockHttpServletResponse` to reflect that it gets its value from the
HTTP response header.
Closes gh-31833
Sam Brannen