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  1. JDK
  2. JDK-8244291

Test: gc/z/TestGarbageCollectorMXBean.java failed: "unexpected cycles"

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    • Resolution: Fixed
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    • 15
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    • hotspot
    • gc
    • b24

      ----------System.out:(30/1532)----------
      [0.467s][info][gc] Using The Z Garbage Collector
      [86.490s][info][gc] GC(0) Garbage Collection (System.gc()) 8M(2%)->12M(2%)
      [94.408s][info][gc] GC(1) Garbage Collection (System.gc()) 16M(3%)->10M(2%)
      [94.444s][info][gc] GC(2) Garbage Collection (System.gc()) 10M(2%)->10M(2%)
      [95.184s][info][gc] GC(3) Garbage Collection (System.gc()) 10M(2%)->14M(3%)
      [96.274s][info][gc] GC(4) Garbage Collection (System.gc()) 14M(3%)->12M(2%)
      [96.383s][info][gc] GC(5) Garbage Collection (System.gc()) 12M(2%)->12M(2%)
      ZGC (com.sun.management.gc.notification)
                        Id: 2
                    Action: end of major GC
                     Cause: System.gc()
                 StartTime: 93133
                   EndTime: 93187
                  Duration: 54
       MemoryUsageBeforeGC: init = 268435456(262144K) used = 16777216(16384K) committed = 268435456(262144K) max = 536870912(524288K)
        MemoryUsageAfterGC: init = 268435456(262144K) used = 10485760(10240K) committed = 268435456(262144K) max = 536870912(524288K)

      ZGC (com.sun.management.gc.notification)
                        Id: 3
                    Action: end of major GC
                     Cause: System.gc()
                 StartTime: 93187
                   EndTime: 93223
                  Duration: 36
       MemoryUsageBeforeGC: init = 268435456(262144K) used = 10485760(10240K) committed = 268435456(262144K) max = 536870912(524288K)
        MemoryUsageAfterGC: init = 268435456(262144K) used = 10485760(10240K) committed = 268435456(262144K) max = 536870912(524288K)

         minCycles: 5
      actualCycles: 2
      actualErrors: 0
      ----------System.err:(13/812)----------
      java.lang.Exception: Unexpected cycles
      at TestGarbageCollectorMXBean.main(TestGarbageCollectorMXBean.java:163)
      at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:64)
      at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      at java.base/java.lang.reflect.Method.invoke(Method.java:564)
      at com.sun.javatest.regtest.agent.MainWrapper$MainThread.run(MainWrapper.java:127)
      at java.base/java.lang.Thread.run(Thread.java:832)

            pliden Per Liden (Inactive)
            dholmes David Holmes
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              Created:
              Updated:
              Resolved: