We have had an ObjectToOptionalConverter since Spring Framework 4.1;
however, prior to this commit we did not have a standard Converter for
the inverse (Optional to Object).
To address that, this commit introduces an OptionalToObjectConverter
that unwraps an Optional, using the ConversionService to convert the
object contained in the Optional (potentially null) to the target type.
This allows for conversions such as the following.
- Optional.empty() -> null
- Optional.of(42) with Integer target -> 42
- Optional.of(42) with String target -> "42"
- Optional.of(42) with Optional<String> target -> Optional.of("42")
The OptionalToObjectConverter is also registered by default in
DefaultConversionService, alongside the existing
ObjectToOptionalConverter.
See gh-20433
Closes gh-34544
Prior to this commit, the Test Bean Override feature provided support
for overriding beans based on qualifier annotations in several
scenarios; however, qualifier annotations got lost if they were
declared on the return type of the @Bean method for the bean being
overridden and the @BeanOverride (such as @MockitoBean) was based on
a supertype of that return type.
To address that, this commit sets the @BeanOverride field as the
"qualified element" in the RootBeanDefinition to ensure that qualifier
annotations are available for subsequent autowiring candidate
resolution.
Closes gh-34646
This commit updates the tests of property values code generated to
invoke the generated code from a `static` context. This ensures that
the test fails if that's not the case.
This commit also updated LinkedHashMap handling that did suffer from
that problem.
Closes gh-34659
This commit introduces a new ResponseSpec.awaitEntityOrNull() extension
function to replace ResponseSpec.toEntity(...).awaitFirstOrNull() and
pass the CoroutineContext to the CoExchangeFilterFunction.
CoroutineContext propagation is implemented via ReactorContext and
ClientRequest attribute.
Closes gh-34555
Signed-off-by: Dmitry Sulman <dmitry.sulman@gmail.com>
Prior to this commit, Spring Framework would use its own ASM fork to
read class/method/annotation metadata from bytecode. This is typically
used in configuration class parsing to build bean definitions without
actually loading classes at runtime at that step.
This commit adds support for a new metadata reading implementation that
uses the ClassFile API available as of Java 24. For now, this is turned
on by default for Java 24+.
Closes gh-33616
Now that we are using JDK 18+ (currently JDK 24 -- see JavaConventions
in buildSrc for details), we can reinstate links to JUnit 5 Javadoc APIs.
Closes gh-27497
This commit updates the Javadoc in various places to reflect the fact
that support for convention-based annotation attribute overrides has
been removed.
See gh-28761
Historically, the Spring Framework first had support for repeatable
annotations based on convention and later added explicit support for
Java 8's @Repeatable facility. Consequently, the support for both
types of repeatable annotations has grown a bit intertwined over the
years. However, modern Java applications typically make use of
@Repeatable, and convention-based repeatable annotations have become
more of a niche.
The RepeatableContainers API supports both types of repeatable
annotations with @Repeatable support being the default. However,
RepeatableContainers.of() makes it very easy to enable support for
convention-based repeatable annotations while accidentally disabling
support for @Repeatable, which can lead to subtle bugs – for example,
if convention-based annotations are combined with @Repeatable
annotations. In addition, it is not readily clear how to combine
@Repeatable support with convention-based repeatable annotations.
In light of the above, this commit revises the RepeatableContainers API
to better guide developers to use @Repeatable support for almost all
use cases while still supporting convention-based repeatable
annotations for special use cases.
Specifically:
- RepeatableContainers.of() is now deprecated in favor of the new
RepeatableContainers.explicitRepeatable() method.
- RepeatableContainers.and() is now deprecated in favor of the new
RepeatableContainers.plus() method which declares the repeatable and
container arguments in the same order as the rest of Spring
Framework's repeated annotation APIs.
For example, instead of the following confusing mixture of
repeatable/container and container/repeatable:
RepeatableContainers.of(A.class, A.Container.class)
.and(B.Container.class, B.class)
Developers are now be able to use:
RepeatableContainers.explicitRepeatable(A.class, A.Container.class)
.plus(B.class, B.Container.class)
This commit also overhauls the Javadoc for RepeatableContainers and
explicitly points out that the following is the recommended approach to
support convention-based repeatable annotations while retaining support
for @Repeatable.
RepeatableContainers.standardRepeatables()
.plus(MyRepeatable1.class, MyContainer1.class)
.plus(MyRepeatable2.class, MyContainer2.class)
See gh-20279
Closes gh-34637
Sam Brannen
Tran Ngoc Nhan
Juergen Hoeller
Yanming Zhou
Stéphane Nicoll
Sébastien Deleuze
Dmitry Sulman
Brian Clozel
rstoyanchev