Previously, SingletonSupplier stored "null" in singletonInstance when
the supplied instance was "null". On subsequent get() calls, this was
treated as "uninitialized" and triggered another attempt to obtain an
instance from the Supplier.
This commit ensures that a "null" returned from the instanceSupplier or
defaultSupplier is handled correctly, so that subsequent calls to get()
return "null" consistently instead of repeatedly invoking the Supplier.
Closes gh-35380
Signed-off-by: Dmytro Nosan <dimanosan@gmail.com>
Prior to this commit, getPubliclyAccessibleMethodIfPossible() in
ClassUtils incorrectly returned a hidden static method as an
"equivalent" method for a static method with the same signature;
however, a static method cannot be overridden and therefore has no
"equivalent" method in a super type.
To fix that bug, this commit immediately aborts the search for an
"equivalent" publicly accessible method when the original method is a
static method.
See gh-33216
See gh-35189
See gh-35556
Closes gh-35667
As reported in gh-34651, `DataBuffer#getByte` can be inefficient for
some implementations, as bound checks are performed for each call.
This commit introduces a new `forEachByte` method that helps with
traversing operations without paying the bound check cost for each byte.
Closes gh-35623
Prior to this commit, our @Retryable support as well as a RetryPolicy
created by the RetryPolicy.Builder only matched against top-level
exceptions when filtering included/excluded exceptions thrown by a
@Retryable method or Retryable operation.
With this commit, we now match against not only top-level exceptions
but also nested causes within those top-level exceptions. This is
achieved via the new ExceptionTypeFilter.match(Throwable, boolean)
support.
See gh-35592
Closes gh-35583
Prior to this commit, ExceptionTypeFilter only provided support for
filtering based on exact matches against exception types; however, some
use cases require that filtering be applied to nested causes in a given
exception. For example, this functionality is a prerequisite for
gh-35583.
This commit introduces a new match(Throwable, boolean) method in
ExceptionTypeFilter, where the boolean flag enables matching against
nested exceptions.
See gh-35583
Closes gh-35592
SingletonSupplier<T> supplier-based static methods nullability should
be refined to accept in a flexible way nullable or non-nullable T.
Closes gh-35559
This commit reinstantiates checks for kotlin-reflect (via static final
fields for faster Java code paths and better native code removal) which
were removed as part of gh-34275, which did not consider the
increasingly popular use cases where kotlin-stdlib is present in the
classpath as a transitive dependency in Java applications.
Closes gh-35511
This commit apply several refinements to PropagationContextElement:
- Capture the ThreadLocal when instantiating the
PropagationContextElement in order to support dispatchers switching
threads
- Remove the constructor parameter which is not idiomatic and breaks
the support when switching threads, and use instead the
updateThreadContext(context: CoroutineContext) parameter
- Make the kotlinx-coroutines-reactor dependency optional
- Make the properties private
The Javadoc and tests are also updated to use the
`Dispatchers.IO + PropagationContextElement()` pattern performed
outside of the suspending lambda, which is the typical use case.
Closes gh-35469
Prior to this commit, annotations were not found on parameters in an
overridden method unless the method was public. Specifically, the
search algorithm in AnnotatedMethod did not consider a protected or
package-private method in a superclass to be a potential override
candidate. This affects parameter annotation searches in
spring-messaging, spring-webmvc, spring-webflux, and any other
components that use or extend AnnotatedMethod.
To address that, this commit revises the search algorithm in
AnnotatedMethod to consider all non-final declared methods as potential
override candidates, thereby aligning with the search logic in
AnnotationsScanner for the MergedAnnotations API.
Closes gh-35349
Prior to this commit, the Micrometer context-propagation project would
help propagating information from `ThreadLocal`, Reactor `Context` and
other context objects. This is already well supported for Micrometer
Observations.
In the case of Kotlin suspending functions, the processing of tasks
would not necessarily update the `ThreadLocal` when the function is
scheduled on a different thread.
This commit introduces the `PropagationContextElement` operator that
connects the `ThreadLocal`, Reactor `Context` and Coroutine `Context`
for all libraries using the "context-propagation" project.
Applications must manually use this operator in suspending functions
like so:
```
suspend fun suspendingFunction() {
return withContext(PropagationContextElement(currentCoroutineContext())) {
logger.info("Suspending function with traceId")
}
}
```
Closes gh-35185
Sam Brannen
Dmytro Nosan
Sébastien Deleuze
rstoyanchev
Kamil Krzywanski
HJC96
Juergen Hoeller
Marius Lichtblau
Brian Clozel
Dariusz Jędrzejczyk
Nurlan Turdaliev
Yanming Zhou
Manu Sridharan