The following test failed in the JDK24 CI:

jdk/jfr/jvm/TestChunkIntegrity.java

Here's a snippet from the log file:

#section:main
----------messages:(7/343)----------
command: main jdk.jfr.jvm.TestChunkIntegrity
reason: User specified action: run main/othervm/timeout=300 jdk.jfr.jvm.TestChunkIntegrity
started: Thu Aug 22 09:41:37 UTC 2024
Mode: othervm [/othervm specified]
Additional options from @modules: --add-modules jdk.jfr
finished: Thu Aug 22 09:41:53 UTC 2024
elapsed time (seconds): 15.927
----------configuration:(3/38)----------
Boot Layer
  add modules: jdk.jfr

----------System.out:(128/7516)*----------
520 jdk.jfr.jvm.TestChunkIntegrity$ClassStressor
196 jdk.jfr.jvm.TestChunkIntegrity$StringStressor
267 jdk.jfr.jvm.TestChunkIntegrity$ClassStressor
898 jdk.jfr.jvm.TestChunkIntegrity$ThreadStressor
111 jdk.jfr.jvm.TestChunkIntegrity$StringStressor
424 jdk.jfr.jvm.TestChunkIntegrity$ThreadStressor
908 jdk.jfr.jvm.TestChunkIntegrity$ClassStressor
165 jdk.jfr.jvm.TestChunkIntegrity$ThreadStressor
141 jdk.jfr.jvm.TestChunkIntegrity$ClassStressor
211 jdk.jfr.jvm.TestChunkIntegrity$StringStressor
35 jdk.jfr.jvm.TestChunkIntegrity$StringStressor
818 jdk.jfr.jvm.TestChunkIntegrity$ClassStressor
318 jdk.jfr.jvm.TestChunkIntegrity$ClassStressor
697 jdk.jfr.jvm.TestChunkIntegrity$ThreadStressor
903 jdk.jfr.jvm.TestChunkIntegrity$ClassStressor
231 jdk.jfr.jvm.TestChunkIntegrity$ClassStressor
303 jdk.jfr.jvm.TestChunkIntegrity$ClassStressor
542 jdk.jfr.jvm.TestChunkIntegrity$ThreadStressor
580 jdk.jfr.jvm.TestChunkIntegrity$StringStressor
341 jdk.jfr.jvm.TestChunkIntegrity$ClassStressor
383 jdk.jfr.jvm.TestChunkIntegrity$ThreadStressor
243 jdk.jfr.jvm.TestChunkIntegrity$ClassStressor
341 jdk.jfr.jvm.TestChunkIntegrity$ClassStressor
485 jdk.jfr.jvm.TestChunkIntegrity$ThreadStressor
582 jdk.jfr.jvm.TestChunkIntegrity$ClassStressor
292 jdk.jfr.jvm.TestChunkIntegrity$ThreadStressor
40 jdk.jfr.jvm.TestChunkIntegrity$ThreadStressor
630 jdk.jfr.jvm.TestChunkIntegrity$ClassStressor
446 jdk.jfr.jvm.TestChunkIntegrity$ThreadStressor
244 jdk.jfr.jvm.TestChunkIntegrity$ThreadStressor
929 jdk.jfr.jvm.TestChunkIntegrity$ClassStressor
650 jdk.jfr.jvm.TestChunkIntegrity$StringStressor
520 jdk.jfr.jvm.TestChunkIntegrity$ThreadStressor
862 jdk.jfr.jvm.TestChunkIntegrity$ClassStressor
770 jdk.jfr.jvm.TestChunkIntegrity$ClassStressor
675 jdk.jfr.jvm.TestChunkIntegrity$ThreadStressor
101 jdk.jfr.jvm.TestChunkIntegrity$ClassStressor
30 jdk.jfr.jvm.TestChunkIntegrity$ClassStressor
297 jdk.jfr.jvm.TestChunkIntegrity$ClassStressor
320 jdk.jfr.jvm.TestChunkIntegrity$ClassStressor
463 jdk.jfr.jvm.TestChunkIntegrity$StringStressor
552 jdk.jfr.jvm.TestChunkIntegrity$ThreadStressor
444 jdk.jfr.jvm.TestChunkIntegrity$ClassStressor
188 jdk.jfr.jvm.TestChunkIntegrity$ClassStressor
213 jdk.jfr.jvm.TestChunkIntegrity$StringStressor
804 jdk.jfr.jvm.TestChunkIntegrity$ClassStressor
968 jdk.jfr.jvm.TestChunkIntegrity$ThreadStressor
251 jdk.jfr.jvm.TestChunkIntegrity$StringStressor
Command line: [c:\\ade\\mesos\\work_dir\\jib-master\\install\\jdk-24+12-1306\\windows-x64.jdk\\jdk-24\\bin\\jfr.exe disassemble --output C:\\sb\\prod\\1724318469\\testoutput\\test-support\\jtreg_open_test_jdk_tier3\\scratch\\4\\disassembled --max-chunks 1 C:\\sb\\prod\\1724318469\\testoutput\\test-support\\jtreg_open_test_jdk_tier3\\scratch\\4\\recording.jfr]
[2024-08-22T09:41:49.776934300Z] Gathering output for process 55832
[2024-08-22T09:41:49.788945200Z] Waiting for completion for process 55832
[2024-08-22T09:41:50.156929900Z] Waiting for completion finished for process 55832
Output and diagnostic info for process 55832 was saved into 'pid-55832-output.log'

Examining recording C:\\sb\\prod\\1724318469\\testoutput\\test-support\\jtreg_open_test_jdk_tier3\\scratch\\4\\recording.jfr ...

File consists of 21 chunks. The recording will be split into 21 files

Writing C:\\sb\\prod\\1724318469\\testoutput\\test-support\\jtreg_open_test_jdk_tier3\\scratch\\4\\disassembled\\recording_00.jfr ... 282276
Writing C:\\sb\\prod\\1724318469\\testoutput\\test-support\\jtreg_open_test_jdk_tier3\\scratch\\4\\disassembled\\recording_01.jfr ... 872693
Writing C:\\sb\\prod\\1724318469\\testoutput\\test-support\\jtreg_open_test_jdk_tier3\\scratch\\4\\disassembled\\recording_02.jfr ... 493214
Writing C:\\sb\\prod\\1724318469\\testoutput\\test-support\\jtreg_open_test_jdk_tier3\\scratch\\4\\disassembled\\recording_03.jfr ... 486325
Writing C:\\sb\\prod\\1724318469\\testoutput\\test-support\\jtreg_open_test_jdk_tier3\\scratch\\4\\disassembled\\recording_04.jfr ... 809158
Writing C:\\sb\\prod\\1724318469\\testoutput\\test-support\\jtreg_open_test_jdk_tier3\\scratch\\4\\disassembled\\recording_05.jfr ... 644861
Writing C:\\sb\\prod\\1724318469\\testoutput\\test-support\\jtreg_open_test_jdk_tier3\\scratch\\4\\disassembled\\recording_06.jfr ... 698480
Writing C:\\sb\\prod\\1724318469\\testoutput\\test-support\\jtreg_open_test_jdk_tier3\\scratch\\4\\disassembled\\recording_07.jfr ... 728873
Writing C:\\sb\\prod\\1724318469\\testoutput\\test-support\\jtreg_open_test_jdk_tier3\\scratch\\4\\disassembled\\recording_08.jfr ... 746607
Writing C:\\sb\\prod\\1724318469\\testoutput\\test-support\\jtreg_open_test_jdk_tier3\\scratch\\4\\disassembled\\recording_09.jfr ... 696936
Writing C:\\sb\\prod\\1724318469\\testoutput\\test-support\\jtreg_open_test_jdk_tier3\\scratch\\4\\disassembled\\recording_10.jfr ... 504488
Writing C:\\sb\\prod\\1724318469\\testoutput\\test-support\\jtreg_open_test_jdk_tier3\\scratch\\4\\disassembled\\recording_11.jfr ... 558195
Writing C:\\sb\\prod\\1724318469\\testoutput\\test-support\\jtreg_open_test_jdk_tier3\\scratch\\4\\disassembled\\recording_12.jfr ... 694571
Writing C:\\sb\\prod\\1724318469\\testoutput\\test-support\\jtreg_open_test_jdk_tier3\\scratch\\4\\disassembled\\recording_13.jfr ... 713556
Writing C:\\sb\\prod\\1724318469\\testoutput\\test-support\\jtreg_open_test_jdk_tier3\\scratch\\4\\disassembled\\recording_14.jfr ... 1575363
Writing C:\\sb\\prod\\1724318469\\testoutput\\test-support\\jtreg_open_test_jdk_tier3\\scratch\\4\\disassembled\\recording_15.jfr ... 800620
Writing C:\\sb\\prod\\1724318469\\testoutput\\test-support\\jtreg_open_test_jdk_tier3\\scratch\\4\\disassembled\\recording_16.jfr ... 876386
Writing C:\\sb\\prod\\1724318469\\testoutput\\test-support\\jtreg_open_test_jdk_tier3\\scratch\\4\\disassembled\\recording_17.jfr ... 850366
Writing C:\\sb\\prod\\1724318469\\testoutput\\test-support\\jtreg_open_test_jdk_tier3\\scratch\\4\\disassembled\\recording_18.jfr ... 797893
Writing C:\\sb\\prod\\1724318469\\testoutput\\test-support\\jtreg_open_test_jdk_tier3\\scratch\\4\\disassembled\\recording_19.jfr ... 643580
Writing C:\\sb\\prod\\1724318469\\testoutput\\test-support\\jtreg_open_test_jdk_tier3\\scratch\\4\\disassembled\\recording_20.jfr ... 1016243

Veryfying chunk: disassembled\\recording_00.jfr 0
Veryfying chunk: disassembled\\recording_01.jfr 3575
Veryfying chunk: disassembled\\recording_02.jfr 23008
Veryfying chunk: disassembled\\recording_03.jfr 35499
Veryfying chunk: disassembled\\recording_04.jfr 46565
Veryfying chunk: disassembled\\recording_05.jfr 69472
Veryfying chunk: disassembled\\recording_06.jfr 87141
Veryfying chunk: disassembled\\recording_07.jfr 105963
Veryfying chunk: disassembled\\recording_08.jfr 126113
Veryfying chunk: disassembled\\recording_09.jfr 146892
One value null
Value A: {
  name = "jdk/jfr/jvm"
  module = {
    name = N/A
    version = N/A
    location = N/A
    classLoader = jdk.test.lib.jfr.TestClassLoader (id = 331)
  }
  exported = true
}

Value B: null
Object A:
jdk.ModuleExport {
  startTime = 09:41:43.276 (2024-08-22)
  exportedPackage = {
    name = "jdk/jfr/jvm"
    module = {
      name = N/A
      version = N/A
      location = N/A
      classLoader = jdk.test.lib.jfr.TestClassLoader (id = 331)
    }
    exported = true
  }
  targetModule = N/A
}


Object B:
jdk.ModuleExport {
  startTime = 09:41:43.276 (2024-08-22)
  exportedPackage = N/A
  targetModule = N/A
}


----------System.err:(12/779)----------
java.lang.AssertionError: Events don't match. Event number 14970
at jdk.jfr.jvm.TestChunkIntegrity.assertEventEquals(TestChunkIntegrity.java:174)
at jdk.jfr.jvm.TestChunkIntegrity.main(TestChunkIntegrity.java:131)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
at java.base/java.lang.reflect.Method.invoke(Method.java:573)
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.AssertionError: Events don't match. Event number 14970
JavaTest Message: shutting down test

STATUS:Failed.`main' threw exception: java.lang.AssertionError: Events don't match. Event number 14970
----------rerun:(43/6232)*----------