The following serviceability tests are failing the JDK24 CI:

sun/tools/jcmd/TestJcmdSanity.java
sun/tools/jcmd/TestJcmdDefaults.java
serviceability/sa/TestJhsdbJstackLock.java
serviceability/sa/JhsdbThreadInfoTest.java
serviceability/sa/ClhsdbJstackXcompStress.java
serviceability/sa/sadebugd/DebugdConnectTest.java
serviceability/attach/RemovingUnixDomainSocketTest.java

Here's a log file snippet from the TestJcmdSanity.jtr log file:

#section:main
----------messages:(7/326)----------
command: main -XX:+UsePerfData TestJcmdSanity
reason: User specified action: run main/othervm -XX:+UsePerfData TestJcmdSanity
started: Fri Jun 07 03:55:16 UTC 2024
Mode: othervm [/othervm specified]
Additional options from @modules: --add-modules jdk.jcmd
finished: Fri Jun 07 03:55:18 UTC 2024
elapsed time (seconds): 1.927
----------configuration:(3/36)----------
Boot Layer
  add modules: jdk.jcmd

----------System.out:(319/16172)----------

<snip>

sun.urlClassLoader.readClassBytesTime=0
sun.zip.zipFile.openTime=19224827
sun.zip.zipFiles=3
];
 stderr: [Java HotSpot(TM) 64-Bit Server VM warning: Temporarily processing option UseNotificationThread; support is scheduled for removal in 24.0
]
 exitValue = 0

java.lang.RuntimeException: stderr was not empty
at jdk.test.lib.process.OutputAnalyzer.stderrShouldBeEmptyIgnoreDeprecatedWarnings(OutputAnalyzer.java:187)
at TestJcmdSanity.matchPerfCounters(TestJcmdSanity.java:158)
at TestJcmdSanity.testJcmdPidPerfCounterPrint(TestJcmdSanity.java:97)
at TestJcmdSanity.main(TestJcmdSanity.java:59)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
at java.base/java.lang.reflect.Method.invoke(Method.java:580)
at com.sun.javatest.regtest.agent.MainWrapper$MainTask.run(MainWrapper.java:138)
at java.base/java.lang.Thread.run(Thread.java:1575)

JavaTest Message: Test threw exception: java.lang.RuntimeException: stderr was not empty
JavaTest Message: shutting down test

STATUS:Failed.`main' threw exception: java.lang.RuntimeException: stderr was not empty
----------rerun:(42/6889)*----------