8381008: [aix] Test java/net/DatagramSocket/SendReceiveMaxSize.java#preferIPv6Loopback fails after JDK-8380824 by MBaesken · Pull Request #30548 · openjdk/jdk

MBaesken · 2026-04-02T08:54:27Z

When running java/net/DatagramSocket/SendReceiveMaxSize.java#preferIPv6Loopback on AIX, we get this failure


----------messages:(7/401)----------
command: testng -Dtest.preferLoopback=true -Djava.net.preferIPv6Addresses=true SendReceiveMaxSize
reason: User specified action: run testng/othervm -Dtest.preferLoopback=true -Djava.net.preferIPv6Addresses=true SendReceiveMaxSize
started: Wed Mar 25 23:02:04.160 CET 2026
Mode: othervm [/othervm specified]
Process id: 9306542
finished: Wed Mar 25 23:02:05.254 CET 2026
elapsed time (seconds): 1.094
----------configuration:(0/0)----------
----------System.out:(247/18212)----------
Seed from RandomFactory = 7291042597024848566L
Host address: localhost/0:0:0:0:0:0:0:1, Buffer limit: 65527
[23:02:04.981] config SendReceiveMaxSize.setUp(): success [0ms]
[23:02:05.076] test SendReceiveMaxSize.testSendReceiveMaxSize("DatagramSocket", 65526, SendReceiveMaxSize$$Lambda/0x0000034000207400@42e8ff27, null): failure [45ms]
java.net.SocketException: Message too long
at java.base/sun.nio.ch.DatagramChannelImpl.send0(Native Method)
at java.base/sun.nio.ch.DatagramChannelImpl.sendFromNativeBuffer(DatagramChannelImpl.java:914)
at java.base/sun.nio.ch.DatagramChannelImpl.send(DatagramChannelImpl.java:871)
at java.base/sun.nio.ch.DatagramChannelImpl.send(DatagramChannelImpl.java:798)
at java.base/sun.nio.ch.DatagramChannelImpl.blockingSend(DatagramChannelImpl.java:857)
at java.base/sun.nio.ch.DatagramSocketAdaptor.send(DatagramSocketAdaptor.java:179)
at java.base/java.net.DatagramSocket.send(DatagramSocket.java:593)
at SendReceiveMaxSize.testSendReceiveMaxSize(SendReceiveMaxSize.java:185)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
at java.base/java.lang.reflect.Method.invoke(Method.java:565)
at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:132)
at org.testng.internal.TestInvoker.invokeMethod(TestInvoker.java:599)
at org.testng.internal.TestInvoker.invokeTestMethod(TestInvoker.java:174)
at org.testng.internal.MethodRunner.runInSequence(MethodRunner.java:46)
at org.testng.internal.TestInvoker$MethodInvocationAgent.invoke(TestInvoker.java:822)
at org.testng.internal.TestInvoker.invokeTestMethods(TestInvoker.java:147)
at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:146)
at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:128)
at java.base/java.util.ArrayList.forEach(ArrayList.java:1612)
at org.testng.TestRunner.privateRun(TestRunner.java:764)
at org.testng.TestRunner.run(TestRunner.java:585)
at org.testng.SuiteRunner.runTest(SuiteRunner.java:384)
at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:378)
at org.testng.SuiteRunner.privateRun(SuiteRunner.java:337)
at org.testng.SuiteRunner.run(SuiteRunner.java:286)
at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:53)
at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:96)
at org.testng.TestNG.runSuitesSequentially(TestNG.java:1218)
at org.testng.TestNG.runSuitesLocally(TestNG.java:1140)
at org.testng.TestNG.runSuites(TestNG.java:1069)
at org.testng.TestNG.run(TestNG.java:1037)
at com.sun.javatest.regtest.agent.TestNGRunner.main(TestNGRunner.java:109)
at com.sun.javatest.regtest.agent.TestNGRunner.main(TestNGRunner.java:65)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
at java.base/java.lang.reflect.Method.invoke(Method.java:565)
at com.sun.javatest.regtest.agent.MainWrapper$MainTask.run(MainWrapper.java:138)
at java.base/java.lang.Thread.run(Thread.java:1527)
[23:02:05.079] test SendReceiveMaxSize.testSendReceiveMaxSize("DatagramSocket", 65527, SendReceiveMaxSize$$Lambda/0x0000034000207400@42e8ff27, null): failure [1ms]
java.net.SocketException: Message too long
at java.base/sun.nio.ch.DatagramChannelImpl.send0(Native Method)
at java.base/sun.nio.ch.DatagramChannelImpl.sendFromNativeBuffer(DatagramChannelImpl.java:914)
at java.base/sun.nio.ch.DatagramChannelImpl.send(DatagramChannelImpl.java:871)
at java.base/sun.nio.ch.DatagramChannelImpl.send(DatagramChannelImpl.java:798)
at java.base/sun.nio.ch.DatagramChannelImpl.blockingSend(DatagramChannelImpl.java:857)
at java.base/sun.nio.ch.DatagramSocketAdaptor.send(DatagramSocketAdaptor.java:179)
at java.base/java.net.DatagramSocket.send(DatagramSocket.java:593)

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Issue

JDK-8381008: [aix] Test java/net/DatagramSocket/SendReceiveMaxSize.java#preferIPv6Loopback fails after JDK-8380824 (Bug - P4)

Reviewers

Martin Doerr (@TheRealMDoerr - Reviewer)
Jaikiran Pai (@jaikiran - Reviewer)
Daniel Fuchs (@dfuch - Reviewer)

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Daniel Fuchs <dfuchs@openjdk.org>

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bridgekeeper · 2026-04-02T08:56:26Z

👋 Welcome back mbaesken! A progress list of the required criteria for merging this PR into master will be added to the body of your pull request. There are additional pull request commands available for use with this pull request.

openjdk · 2026-04-02T08:56:41Z

@MBaesken This change now passes all automated pre-integration checks.

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After integration, the commit message for the final commit will be:

8381008: [aix] Test java/net/DatagramSocket/SendReceiveMaxSize.java#preferIPv6Loopback fails after JDK-8380824

Co-authored-by: Daniel Fuchs <dfuchs@openjdk.org>
Reviewed-by: mdoerr, jpai, dfuchs

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At the time when this comment was updated there had been 1 new commit pushed to the master branch:

a506853: 8374020: Inconsistent handling of type updates in typeWithAnnotations

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openjdk · 2026-04-02T08:57:35Z

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mlbridge · 2026-04-02T09:03:49Z

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MBaesken · 2026-04-02T11:29:01Z

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openjdk · 2026-04-02T11:29:55Z

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MBaesken · 2026-04-02T11:31:35Z

/contributor add dfuchs

openjdk · 2026-04-02T11:31:52Z

@MBaesken
Contributor Daniel Fuchs <dfuchs@openjdk.org> successfully added.

TheRealMDoerr

LGTM. Thanks for fixing it!

jaikiran

This looks OK to me. Please wait for Daniel's review who has been investigating this issue.

dfuch

Thanks @MBaesken ! Looks good to me.

JDK-8381008

e033caf

openjdk bot changed the title ~~JDK-8381008: [aix] Test java/net/DatagramSocket/SendReceiveMaxSize.java#preferIPv6Loopback fails after JDK-8380824~~ 8381008: [aix] Test java/net/DatagramSocket/SendReceiveMaxSize.java#preferIPv6Loopback fails after JDK-8380824 Apr 2, 2026

openjdk bot added the net net-dev@openjdk.org label Apr 2, 2026

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8381008: [aix] Test java/net/DatagramSocket/SendReceiveMaxSize.java#preferIPv6Loopback fails after JDK-8380824#30548

8381008: [aix] Test java/net/DatagramSocket/SendReceiveMaxSize.java#preferIPv6Loopback fails after JDK-8380824#30548
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