Don't allow requests into restarting application

[stuartwdouglas]

If the app is restarting then we should not short-circuit the hot reload handler/scan lock logic.

This is not perfect, as there will always be a possible race, but makes it much less likely a request will hit a torn down app.

fixes #29646

[geoand]

I assume this is meant to close #29646?

[stuartwdouglas]

I did not realize there was an existing issue, but yes, it seems like it.

[geoand]

🙏🏽

[geoand]

The test failure should be fixed by #45681

[quarkus-bot]

Status for workflow Quarkus CI

This is the status report for running Quarkus CI on commit 4ba3a46.

✅ The latest workflow run for the pull request has completed successfully.

It should be safe to merge provided you have a look at the other checks in the summary.

You can consult the Develocity build scans.

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Flaky tests - Develocity

⚙️ JVM Tests - JDK 17

📦 extensions/smallrye-reactive-messaging-kafka/deployment

✖ io.quarkus.smallrye.reactivemessaging.kafka.deployment.testing.KafkaDevServicesContinuousTestingWorkingAppPropsTestCase.testContinuousTestingScenario3 - History

• io.quarkus.builder.BuildException: Build failure: Build failed due to errors [error]: Build step io.quarkus.redis.deployment.client.DevServicesRedisProcessor\#startRedisContainers threw an exception: java.lang.RuntimeException: org.testcontainers.containers.ContainerLaunchException: Container startup failed for image docker.io/redis:7 at io.quarkus.redis.deployment.client.DevServicesRedisProcessor.startRedisContainers(DevServicesRedisProcessor.java:124) at java.base/java.lang.invoke.MethodHandle.invokeWithArguments(MethodHandle.java:732) at io.quarkus.deployment.ExtensionLoader$3.execute(ExtensionLoader.java:856) - java.lang.RuntimeException

java.lang.RuntimeException: 
io.quarkus.builder.BuildException: Build failure: Build failed due to errors
	[error]: Build step io.quarkus.redis.deployment.client.DevServicesRedisProcessor#startRedisContainers threw an exception: java.lang.RuntimeException: org.testcontainers.containers.ContainerLaunchException: Container startup failed for image docker.io/redis:7
	at io.quarkus.redis.deployment.client.DevServicesRedisProcessor.startRedisContainers(DevServicesRedisProcessor.java:124)
	at java.base/java.lang.invoke.MethodHandle.invokeWithArguments(MethodHandle.java:732)
	at io.quarkus.deployment.ExtensionLoader$3.execute(ExtensionLoader.java:856)
	at io.quarkus.builder.BuildContext.run(BuildContext.java:256)
	at org.jboss.threads.ContextHandler$1.runWith(ContextHandler.java:18)

📦 integration-tests/smallrye-context-propagation

✖ io.quarkus.context.test.SimpleContextPropagationTest.testArcTCContextPropagationDisabled - History

• expected: <2> but was: <3> - org.opentest4j.AssertionFailedError

org.opentest4j.AssertionFailedError: expected: <2> but was: <3>
	at org.junit.jupiter.api.AssertionFailureBuilder.build(AssertionFailureBuilder.java:151)
	at org.junit.jupiter.api.AssertionFailureBuilder.buildAndThrow(AssertionFailureBuilder.java:132)
	at org.junit.jupiter.api.AssertEquals.failNotEqual(AssertEquals.java:197)
	at org.junit.jupiter.api.AssertEquals.assertEquals(AssertEquals.java:150)
	at org.junit.jupiter.api.AssertEquals.assertEquals(AssertEquals.java:145)
	at org.junit.jupiter.api.Assertions.assertEquals(Assertions.java:531)
	at io.quarkus.context.test.SimpleContextPropagationTest.testArcTCContextPropagationDisabled(SimpleContextPropagationTest.java:92)

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⚙️ JVM Tests - JDK 21

📦 extensions/smallrye-reactive-messaging/deployment

✖ io.quarkus.smallrye.reactivemessaging.hotreload.ConnectorChangeTest.testUpdatingConnector - History

• Expecting actual: ["-6","-7","-8","-10","-11","-12","-13","-14"] to start with: ["-6", "-7", "-8", "-9"] - java.lang.AssertionError

java.lang.AssertionError: 

Expecting actual:
  ["-6","-7","-8","-10","-11","-12","-13","-14"]
to start with:
  ["-6", "-7", "-8", "-9"]

	at io.quarkus.smallrye.reactivemessaging.hotreload.ConnectorChangeTest.testUpdatingConnector(ConnectorChangeTest.java:41)

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⚙️ JVM Tests - JDK 17 Windows

📦 extensions/websockets-next/deployment

✖ io.quarkus.websockets.next.test.broadcast.BroadcastOnOpenTest.testLo - History

• Messages: [c2:client1] ==> expected: <true> but was: <false> - org.opentest4j.AssertionFailedError

org.opentest4j.AssertionFailedError: Messages: [c2:client1] ==> expected: <true> but was: <false>
	at org.junit.jupiter.api.AssertionFailureBuilder.build(AssertionFailureBuilder.java:151)
	at org.junit.jupiter.api.AssertionFailureBuilder.buildAndThrow(AssertionFailureBuilder.java:132)
	at org.junit.jupiter.api.AssertTrue.failNotTrue(AssertTrue.java:63)
	at org.junit.jupiter.api.AssertTrue.assertTrue(AssertTrue.java:36)
	at org.junit.jupiter.api.Assertions.assertTrue(Assertions.java:214)
	at io.quarkus.websockets.next.test.broadcast.BroadcastOnOpenTest.assertBroadcast(BroadcastOnOpenTest.java:105)
	at io.quarkus.websockets.next.test.broadcast.BroadcastOnOpenTest.testLo(BroadcastOnOpenTest.java:45)