We use Grafana to monitor our app via Spring's JMX exporter, and we
think it could be interesting to have at least the current queue size
for this purpose since the queue size directly affects the app memory
load. Having the queue capacity seems also interesting to set up
triggers whose values are calculated based on the maximum capacity of
the queue.
This commit introduces new getCurrentQueueSize() and getQueueCapacity()
methods in ThreadPoolTaskExecutor.
See gh-28583
Refine the class name logic so that the name is passed in rather
than using `ApplicationContext.getId()`. Also propagate the name
so that the generated classes use it.
See gh-28565
Update `ApplicationContextAotGenerator` so that it can generate class
names based on a `target` class and using the ID of the application
context. Prior to this commit, the generated class name was always
`__.BeanFactoryRegistrations`.
Closes gh-28565
This commit adds a central utility to figure out if the application
must run with Ahead-Of-Time optimizations. This is mandatory for running
in a native image but can be selected on the JVM using the
"spring.aot.enabled" property.
This commit also introduces a utility that can be used to initialize a
context with generated artifacts. This represents the runtime
counterpart of ApplicationContextAotGenerator.
Closes gh-28474
Prior to this commit, the hints conditions were only supported for the
`TypeHint` case. GraalVM generally expanded this concept to all hints
and we should do the same.
Right now, only the `typeReachable` condition is available but we should
design for possible future additions.
This commit introduces a new `ConditionalHint` contract implemented by
all hints compatible with this approach. The condition information is
also used in all configuration writers as a result.
Closes gh-28126
This commit adds a `@Reflective` annotation that can be used to declare
that the annotated element requires reflection at runtime. By default,
the annotated element is exposed but this can be customized by
specifying a dedicated `ReflectiveProcessor`.
Closes gh-28469
A static nested class does not keep an implicit reference to its
enclosing instance.
This prevents a common cause of memory leaks and uses less memory per
instance of the class.
Closes gh-28433
Prior to this commit, we could only contribute `RuntimeHints` through
two mechanisms:
* `AotContributingBeanFactoryPostProcessor`, consdering the entire
`BeanFactory` and designed for contributing both code and hints.
* `AotContributingBeanPostProcessor`, consdering beans one by one, but
also designed for contributing both code and hints.
There are cases where libraries and applications want to contribute
`RuntimeHints` only, in a more static fashion: a dependency being
present, or a piece of infrastructure being considered by the
application context are good enough signals to contribute hints about
resources or reflection.
This commit adds the `RuntimeHintsRegistrar` contract for these cases.
Implementations can be declared as `spring.factories` and they will be
processed as soon as they're detected on the classpath. They can also be
declared with `@ImportRuntimeHints` and they will be processed if the
annotated bean definition is considered in the application context.
This annotation should be mainly used on configuration classes and on
bean methods.
```
@Configuration
@ImportRuntimeHints(CustomRuntimeHintsRegistrar.class)
public class MyConfiguration {
@Bean
@ImportRuntimeHints(OtherRuntimeHintsRegistrar.class)
public MyBean myBean() {
//...
}
}
```
Closes gh-28160
This commit removes Spring's custom NestedIOException and replaces its
usage with the standard IOException which has supported a root cause
since Java 6.
Closes gh-28198
With a Java 8 baseline in place for quite some time now, it no longer
makes sense to refer to features such as annotations as "Java 5
annotations".
This commit also removes old `Tiger*Tests` classes, thereby avoiding
duplicate execution of various tests.
Since the Nashorn JavaScript engine was removed in Java 15, these tests
will never be run on a Java 17+ JDK which is required as of Spring
Framework 6.0.
See gh-27919
Sam Brannen
Rémy
Stephane Nicoll
Phillip Webb
Andreas Grub
Brian Clozel
evgeny.bovykin
Juergen Hoeller