This commit introduces null-safe support for java.util.Optional in the
following SpEL operators:
- PropertyOrFieldReference
- MethodReference
- Indexer
- Projection
- Selection
- Elvis
Specifically, when a null-safe operator is applied to an empty
`Optional`, it will be treated as if the `Optional` were `null`, and
the subsequent operation will evaluate to `null`. However, if a
null-safe operator is applied to a non-empty `Optional`, the subsequent
operation will be applied to the object contained in the `Optional`,
thereby effectively unwrapping the `Optional`.
For example, if `user` is of type `Optional<User>`, the expression
`user?.name` will evaluate to `null` if `user` is either `null` or an
empty `Optional` and will otherwise evaluate to the `name` of the
`user`, effectively `user.get().getName()` for property access.
Note, however, that invocations of methods defined in the `Optional`
API are still supported on an empty `Optional`. For example, if `name`
is of type `Optional<String>`, the expression `name?.orElse('Unknown')`
will evaluate to "Unknown" if `name` is an empty `Optional` and will
otherwise evaluate to the `String` contained in the `Optional` if
`name` is a non-empty `Optional`, effectively `name.get()`.
Closes gh-20433
Prior to this commit, @MockitoSpyBean could only be declared on fields
within test classes, which prevented developers from being able to
easily reuse spy configuration across a test suite.
With this commit, @MockitoSpyBean is now supported at the type level
on test classes, their superclasses, and interfaces implemented by
those classes. @MockitoSpyBean is also supported on enclosing classes
for @Nested test classes, their superclasses, and interfaces
implemented by those classes, while honoring @NestedTestConfiguration
semantics.
In addition, @MockitoSpyBean:
- has a new `types` attribute that can be used to declare the type or
types to spy when @MockitoSpyBean is declared at the type level
- can be declared as a repeatable annotation at the type level
- can be declared as a meta-annotation on a custom composed annotation
which can be reused across a test suite (see the @SharedSpies
example in the reference manual)
To support these new features, this commit also includes the following
changes.
- MockitoSpyBeanOverrideProcessor has been revised to support
@MockitoSpyBean at the type level.
- The "Bean Overriding in Tests" and "@MockitoBean and
@MockitoSpyBean" sections of the reference manual have been fully
revised.
See gh-34408
Closes gh-33925
Prior to this commit, Spring MVC and WebFlux would consider the
"kotlinx.serialization" JSON codecs and converters in addition to other
JSON alternatives like Jackson, Gson and Jsonb.
This would cause issues because while in most cases this library is only
involved if the type is annotated with "@Serializable", this is not true
for Java enums. In this particular case, the codec shadows Jackson and
causes issues.
This commit now considers kotlinx.serialization JSON support as an
alternative to Jackson. Just like Jsonb and GSON, this is only
auto-detected if Jackson is not present.
We received consistent feedback that kotlinx.serialization is popular in
Kotlin libraries and is often a transitive dependency. As a result, we
cannot consider its presence on the classpath as a strong enough signal
to configure it by default.
Closes gh-34410
Due to changes in gh-19118, classes that contain @Lookup methods are
no longer required to be concrete classes for use with component
scanning; however, the reference documentation still states that such
classes must not be abstract.
This commit therefore removes the outdated reference documentation and
updates the corresponding Javadoc.
See gh-19118
Closes gh-34367
As of Spring Framework 6.2, the `RestClient.retrieve()` method is a
no-op and developers must invoke a terminal operation on the returned
`ResponseSpec` to have any side effect.
This has been documented in the Javadoc and the wiki release notes, but
this commit highlights this as well in the reference documentation.
Closes gh-34334
This commit adds a reference documentation section explaining how
applications can use custom `HttpServiceArgumentResolver`
implementations to support complex application types as method
parameters in HTTP interfaces.
Closes gh-34227
Prior to this commit, @MockitoBean could only be declared on fields
within test classes, which prevented developers from being able to
easily reuse mock configuration across a test suite.
With this commit, @MockitoBean is now supported at the type level on
test classes, their superclasses, and interfaces implemented by those
classes. @MockitoBean is also supported on enclosing classes for
@Nested test classes, their superclasses, and interfaces implemented
by those classes, while honoring @NestedTestConfiguration semantics.
In addition, @MockitoBean:
- has a new `types` attribute that can be used to declare the type or
types to mock when @MockitoBean is declared at the type level
- can be declared as a repeatable annotation at the type level
- can be declared as a meta-annotation on a custom composed annotation
which can be reused across a test suite (see the @SharedMocks
example in the reference manual)
To support these new features, this commit also includes the following
changes.
- The `field` property in BeanOverrideHandler is now @Nullable.
- BeanOverrideProcessor has a new `default` createHandlers() method
which is invoked when a @BeanOverride annotation is found at the
type level.
- MockitoBeanOverrideProcessor implements the new createHandlers()
method.
- The internal findHandlers() method in BeanOverrideHandler has been
completely overhauled.
- The @MockitoBean and @MockitoSpyBean section of the reference
manual has been completely overhauled.
Closes gh-33925
Prior to this commit, the search algorithm used to locate a @TestBean
factory method within a test class hierarchy incorrectly found factory
methods declared in subclasses or nested test classes "below" the class
in which the @TestBean field was declared. This resulted in "duplicate
bean override" failures for @TestBean overrides which are clearly not
duplicates but rather "overrides of an override".
This commit ensures that @TestBean factory method resolution is
consistent in type hierarchies as well as in enclosing class
hierarchies (for @Nested test classes) by beginning the search for a
factory method in the class which declares the @TestBean field.
Closes gh-34204
This commit updates the null-safety documentation to use "nullness"
instead of "nullability" in order to be consistent with the JSpecify
documentation.
See gh-28797
This commit describes what parts that are removed from the URI template
keyvalue.
Closes: gh-34116
Signed-off-by: Mattias-Sehlstedt <60173714+Mattias-Sehlstedt@users.noreply.github.com>
Sam Brannen
Tran Ngoc Nhan
Brian Clozel
Juergen Hoeller
Vedran Pavic
Sébastien Deleuze
Stéphane Nicoll
canattofilipe
Pierre Rossato
Sébastien Deleuze
Johnny Lim
rstoyanchev
Yanming Zhou
Mattias-Sehlstedt
Brenden Ehlers