Cleanup/simplification in core module

[rsvoboda]

Cleanup/simplification in core module

3 commits covering:

• For loops simplification
• Files.writeString instead of Files.write
• Pattern variable usage with instanceOf
  • BytecodeRecorderImpl has also several cases of instanceOf usage, but I didn't touch it not to impact possible backports into LTS branches

[github-actions]

🎊 PR Preview f72af1e has been successfully built and deployed to https://quarkus-pr-main-50448-preview.surge.sh/version/main/guides/

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[rsvoboda]

Rebased to resolve conflict with 4557b4a

[gsmet]

OK, this one I checked and I think it should be fine.

[quarkus-bot]

Status for workflow Quarkus Documentation CI

This is the status report for running Quarkus Documentation CI on commit 4661cdd.

✅ 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.

Warning

There are other workflow runs running, you probably need to wait for their status before merging.

[quarkus-bot]

Status for workflow Quarkus CI

This is the status report for running Quarkus CI on commit 4661cdd.

✅ 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 25

📦 extensions/micrometer-opentelemetry/deployment

❌ io.quarkus.micrometer.opentelemetry.deployment.compatibility.MicrometerTimedInterceptorTest.testTimeMethod_Uni - History

• Stream has no elements - java.lang.IllegalArgumentException

java.lang.IllegalArgumentException: Stream has no elements
	at io.quarkus.micrometer.opentelemetry.deployment.common.MetricDataFilter.lambda$lastReading$1(MetricDataFilter.java:213)
	at java.base/java.util.Optional.orElseThrow(Optional.java:403)
	at io.quarkus.micrometer.opentelemetry.deployment.common.MetricDataFilter.lastReading(MetricDataFilter.java:213)
	at io.quarkus.micrometer.opentelemetry.deployment.common.MetricDataFilter.lastReadingDataPoint(MetricDataFilter.java:231)
	at io.quarkus.micrometer.opentelemetry.deployment.compatibility.MicrometerTimedInterceptorTest.testTimeMethod_Uni(MicrometerTimedInterceptorTest.java:174)
	at java.base/java.lang.reflect.Method.invoke(Method.java:565)
	at io.quarkus.test.QuarkusUnitTest.runExtensionMethod(QuarkusUnitTest.java:534)

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⚙️ JVM Tests - JDK 17 Windows

📦 test-framework/junit5-internal

❌ io.quarkus.test.QuarkusProdModeTestConfusingLogTest.shouldWaitForAppActuallyStarted - History

• App's HTTP server is not reachable ==> Unexpected exception thrown: java.net.http.HttpConnectTimeoutException: HTTP connect timed out - org.opentest4j.AssertionFailedError

org.opentest4j.AssertionFailedError: App's HTTP server is not reachable ==> Unexpected exception thrown: java.net.http.HttpConnectTimeoutException: HTTP connect timed out
	at org.junit.jupiter.api.AssertionFailureBuilder.build(AssertionFailureBuilder.java:152)
	at org.junit.jupiter.api.AssertDoesNotThrow.createAssertionFailedError(AssertDoesNotThrow.java:84)
	at org.junit.jupiter.api.AssertDoesNotThrow.assertDoesNotThrow(AssertDoesNotThrow.java:53)
	at org.junit.jupiter.api.AssertDoesNotThrow.assertDoesNotThrow(AssertDoesNotThrow.java:40)
	at org.junit.jupiter.api.Assertions.assertDoesNotThrow(Assertions.java:3218)
	at io.quarkus.test.QuarkusProdModeTestConfusingLogTest.thenAppIsRunning(QuarkusProdModeTestConfusingLogTest.java:73)
	at io.quarkus.test.QuarkusProdModeTestConfusingLogTest.shouldWaitForAppActuallyStarted(QuarkusProdModeTestConfusingLogTest.java:49)

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⚙️ Maven Tests - JDK 17

📦 integration-tests/devmode

❌ io.quarkus.test.devui.DevUIGrpcSmokeTest.testTestService - History

• Too many recursions, message not returned for id [678426026] - java.lang.RuntimeException

java.lang.RuntimeException: Too many recursions, message not returned for id [678426026]
	at io.quarkus.devui.tests.DevUIJsonRPCTest.objectResultFromJsonRPC(DevUIJsonRPCTest.java:175)
	at io.quarkus.devui.tests.DevUIJsonRPCTest.objectResultFromJsonRPC(DevUIJsonRPCTest.java:178)
	at io.quarkus.devui.tests.DevUIJsonRPCTest.objectResultFromJsonRPC(DevUIJsonRPCTest.java:178)
	at io.quarkus.devui.tests.DevUIJsonRPCTest.objectResultFromJsonRPC(DevUIJsonRPCTest.java:178)
	at io.quarkus.devui.tests.DevUIJsonRPCTest.objectResultFromJsonRPC(DevUIJsonRPCTest.java:178)
	at io.quarkus.devui.tests.DevUIJsonRPCTest.objectResultFromJsonRPC(DevUIJsonRPCTest.java:178)
	at io.quarkus.devui.tests.DevUIJsonRPCTest.objectResultFromJsonRPC(DevUIJsonRPCTest.java:178)