Fix JAX-RS Application class hierarchy handling

[geoand]

Fixes: #16228

[quarkus-bot]

Test Failures

⚙️ jvm-linux-jdk8

📦 extensions/mongodb-client/deployment

# Tests:    11
+ Success:  10
- Failures: 0
- Errors:   1
! Skipped:  0

❌ io.quarkus.mongodb.LegacyNamedMongoClientConfigTest - see on GitHub

java.util.concurrent.RejectedExecutionException
	at org.jboss.threads.RejectingExecutor.execute(RejectingExecutor.java:38)
	at org.jboss.threads.EnhancedQueueExecutor.rejectShutdown(EnhancedQueueExecutor.java:2045)
	at org.jboss.threads.EnhancedQueueExecutor.execute(EnhancedQueueExecutor.java:767)
	at io.smallrye.mutiny.infrastructure.MutinyScheduler$DecoratedRunnableTask.run(MutinyScheduler.java:58)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
	Suppressed: java.util.concurrent.RejectedExecutionException: Executor is being shut down
		at org.jboss.threads.EnhancedQueueExecutor.rejectShutdown(EnhancedQueueExecutor.java:2047)
		... 5 more

---

⚙️ jvm-windows-jdk11

📦 extensions/mongodb-client/deployment

# Tests:    11
+ Success:  10
- Failures: 0
- Errors:   1
! Skipped:  0

❌ io.quarkus.mongodb.NamedMongoClientConfigTest - see on GitHub

java.util.concurrent.RejectedExecutionException
	at org.jboss.threads.RejectingExecutor.execute(RejectingExecutor.java:38)
	at org.jboss.threads.EnhancedQueueExecutor.rejectShutdown(EnhancedQueueExecutor.java:2045)
	at org.jboss.threads.EnhancedQueueExecutor.execute(EnhancedQueueExecutor.java:767)
	at io.smallrye.mutiny.infrastructure.MutinyScheduler$DecoratedRunnableTask.run(MutinyScheduler.java:58)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
	at java.base/java.lang.Thread.run(Thread.java:834)
	Suppressed: java.util.concurrent.RejectedExecutionException: Executor is being shut down
		at org.jboss.threads.EnhancedQueueExecutor.rejectShutdown(EnhancedQueueExecutor.java:2047)
		... 5 more

[geoand]

@gsmet it would be nice to get this in 1.13.1