Nothing to go off in the logs as far as I can see. The jcmd invocation just timed out and was apparently aborted (exitcode 134)

Running DCMD 'Compiler.directives_add jcmd_directives.json' through 'PidJcmdExecutor'
Executing command '[/System/Volumes/Data/mesos/work_dir/jib-master/install/jdk-23+16-1211/macosx-aarch64-debug.jdk/jdk-23/fastdebug/bin/jcmd, 11647, Compiler.directives_add jcmd_directives.json]'
[2024-03-22T01:39:39.638595Z] Gathering output for process 11648
[2024-03-22T01:39:39.638781Z] Waiting for completion for process 11648
[2024-03-22T01:48:41.450174Z] Waiting for completion finished for process 11648
Output and diagnostic info for process 11648 was saved into 'pid-11648-output.log'
Command returned with exit code 134
---------------- stdout ----------------
11647:

---------------- stderr ----------------

----------------------------------------

Running DCMD 'Compiler.directives_clear' through 'PidJcmdExecutor'
Executing command '[/System/Volumes/Data/mesos/work_dir/jib-master/install/jdk-23+16-1211/macosx-aarch64-debug.jdk/jdk-23/fastdebug/bin/jcmd, 11647, Compiler.directives_clear]'
[2024-03-22T01:48:41.457431Z] Gathering output for process 12368
[2024-03-22T01:48:41.457626Z] Waiting for completion for process 12368
[2024-03-22T01:49:58.505981Z] Waiting for completion finished for process 11647
Output and diagnostic info for process 11647 was saved into 'pid-11647-output.log'
[2024-03-22T01:49:58.537142Z] Waiting for completion FAILED for process 12368
----------System.err:(18/952)----------
 stdout: [INFO: Client connection port = 61789
];
 stderr: []
 exitValue = 134

java.lang.RuntimeException: Expected to get exit value of [0], exit value is: [134]
at jdk.test.lib.process.OutputAnalyzer.shouldHaveExitValue(OutputAnalyzer.java:521)
at compiler.compilercontrol.share.scenario.Scenario.execute(Scenario.java:118)
at compiler.compilercontrol.jcmd.ClearDirectivesStackTest.test(ClearDirectivesStackTest.java:78)
at compiler.compilercontrol.jcmd.ClearDirectivesStackTest.main(ClearDirectivesStackTest.java:55)
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.MainActionHelper$AgentVMRunnable.run(MainActionHelper.java:333)
at java.base/java.lang.Thread.run(Thread.java:1575)

JavaTest Message: Test threw exception: java.lang.RuntimeException
JavaTest Message: shutting down test

result: Error. Agent error: java.lang.Exception: Agent 8 timed out with a timeout of 480 seconds; check console log for any additional details