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  1. JDK
  2. JDK-8368367

Test jdk/jfr/event/gc/detailed/TestGCHeapMemoryUsageEvent.java fails jdk.GCHeapMemoryUsage "expected 0 > 0"

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    • Icon: Bug Bug
    • Resolution: Fixed
    • Icon: P4 P4
    • 26
    • 25, 26
    • hotspot
    • gc
    • b17
    • x86_64
    • linux

      Test jdk/jfr/event/gc/detailed/TestGCHeapMemoryUsageEvent.java fails jdk.GCHeapMemoryUsage "expected 0 > 0" with fastdebug build.

      The test log snippet:

      STDOUT:
       [jdk.GCHeapMemoryUsage {
         startTime = 11:06:27.440 (2025-09-23)
         used = 0 bytes
         committed = 272.0 MB
         max = 30.0 GB
       }
       
       , jdk.GCHeapMemoryUsage {
         startTime = 11:06:27.734 (2025-09-23)
         used = 3.2 MB
         committed = 64.0 MB
         max = 30.0 GB
       }
       
       ]
       Error: Value not above 0, field='used', value='0': expected 0 > 0
       Failed event:
       jdk.GCHeapMemoryUsage {
         startTime = 11:06:27.440 (2025-09-23)
         used = 0 bytes
         committed = 272.0 MB
         max = 30.0 GB
       }
       
       
       STDERR:
       java.lang.RuntimeException: Value not above 0, field='used', value='0': expected 0 > 0
        at jdk.test.lib.Asserts.fail(Asserts.java:715)
        at jdk.test.lib.Asserts.assertGreaterThan(Asserts.java:403)
        at jdk.test.lib.jfr.EventField.lambda$above$0(EventField.java:62)
        at jdk.test.lib.jfr.EventField.doAssert(EventField.java:114)
        at jdk.test.lib.jfr.EventField.above(EventField.java:62)
        at jdk.jfr.event.gc.detailed.TestGCHeapMemoryUsageEvent.main(TestGCHeapMemoryUsageEvent.java:53)

            tschatzl Thomas Schatzl
            syan Sendao Yan
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              Created:
              Updated:
              Resolved: