This commit makes the 3 existing InvocableHandlerMethod types more
consistent and comparable with each other.
1. Use of consistent method names and method order.
2. Consistent error formatting.
3. Explicit for loops for resolving argument values in webflux variant
because that makes it more readable, creates less garabage, and it's
the only way to bring consistency since the other two variants cannot
throw exceptions inside Optional lambdas (vs webflux variant which can
wrap it in a Mono).
4. Use package private HandlerMethodArgumentComposite in webflux
variant in order to pick up the resolver argument caching that the
other two variants have.
5. Polish tests.
6. Add missing tests for messaging variant.
This was a package private class in spring-messaging since 5.0, and was
recently made public in 5.1. This commit promotes it to spring-core
where it belongs next to all other ListenableFuture support classes.
Follow-up refactoring for SPR-17336
Collapse the package private AbstractMonoToListenableFutureAdapter into
its only sub-class MonoToListenableFutureAdapter. There is no need for
such an abstract class that makes it possible to adapt from one source
to a different target type. That's already covered by
ListenableFutureAdapter.
Follow-up refactoring for SPR-17336.
Empty Maps are preferably initialized without capacity (not initializing them at all or lazily initializing with default capacity when needed).
Issue: SPR-17105
This commit adds support for single-value reactive types in
@MessageMapping by converting them using ReactiveAdapterRegistry
and MonoToListenableFutureAdapter.
MonoToListenableFutureAdapter previously package private and used only
in org.springframework.messaging.tcp.reactor has been moved to
org.springframework.messaging.support and made public in order to be
used by ReactiveReturnValueHandler as well.
Issue: SPR-16634
Update all classes so that inner classes are always last. Also
ensure that utility classes are always final and have a private
constructor and make exceptions final whenever possible.
Issue: SPR-16968
