Test
gc/x/TestGarbageCollectorMXBean.java
fails with
-Xcomp -ea -esa -XX:CompileThreshold=100 -XX:+UnlockExperimentalVMOptions -XX:TieredStopAtLevel=1/2/3

Log:
[0.053s][info][gc] Using The Z Garbage Collector
[2.666s][info][gc] GC(0) Garbage Collection (CodeCache GC Threshold) 6M(1%)->10M(2%)
[6.306s][info][gc] GC(1) Garbage Collection (System.gc()) 12M(2%)->8M(2%)
[11.576s][info][gc] GC(2) Garbage Collection (CodeCache GC Threshold) 12M(2%)->10M(2%)
[1.915s] (MainThread) Starting GC 0
[8.557s] (Notification Thread) ZGC Pauses (com.sun.management.gc.notification)
[14.767s][info][gc] GC(3) Garbage Collection (System.gc()) 16M(3%)->12M(2%)
[8.843s] (MainThread) Starting GC 1
[8.848s] (Notification Thread) Id: 7
[8.849s] (Notification Thread) Action: end of GC pause
[8.849s] (Notification Thread) Cause: CodeCache GC Threshold
[8.850s] (Notification Thread) StartTime: 11330
[8.850s] (Notification Thread) EndTime: 11330
[8.850s] (Notification Thread) Duration: 0
[14.832s][info][gc] GC(4) Garbage Collection (System.gc()) 14M(3%)->12M(2%)
[8.908s] (MainThread) Starting GC 2
[14.905s][info][gc] GC(5) Garbage Collection (System.gc()) 14M(3%)->10M(2%)
[8.982s] (MainThread) Starting GC 3
[8.981s] (Notification Thread) MemoryUsageBeforeGC: init = 0(0K) used = 0(0K) committed = 0(0K) max = 0(0K)
[8.984s] (Notification Thread) MemoryUsageAfterGC: init = 0(0K) used = 0(0K) committed = 0(0K) max = 0(0K)
[8.984s] (Notification Thread)
[8.986s] (Notification Thread) ERROR: Cause
[14.947s][info][gc] GC(6) Garbage Collection (System.gc()) 10M(2%)->12M(2%)
[9.023s] (MainThread) Starting GC 4
[15.000s][info][gc] GC(7) Garbage Collection (System.gc()) 12M(2%)->8M(2%)
[9.077s] (MainThread) Waiting...
[9.173s] (Notification Thread) ZGC Pauses (com.sun.management.gc.notification)
[9.174s] (Notification Thread) Id: 8
[9.174s] (Notification Thread) Action: end of GC pause
[9.175s] (Notification Thread) Cause: CodeCache GC Threshold
[9.175s] (Notification Thread) StartTime: 11365
[9.175s] (Notification Thread) EndTime: 11365
[9.175s] (Notification Thread) Duration: 0
[9.202s] (Notification Thread) MemoryUsageBeforeGC: init = 0(0K) used = 0(0K) committed = 0(0K) max = 0(0K)
[9.202s] (Notification Thread) MemoryUsageAfterGC: init = 0(0K) used = 0(0K) committed = 0(0K) max = 0(0K)
[9.202s] (Notification Thread)
[9.203s] (Notification Thread) ERROR: Cause
[9.204s] (Notification Thread) ZGC Pauses (com.sun.management.gc.notification)
[9.204s] (Notification Thread) Id: 9
[9.204s] (Notification Thread) Action: end of GC pause
[9.204s] (Notification Thread) Cause: CodeCache GC Threshold
[9.204s] (Notification Thread) StartTime: 11448
[9.204s] (Notification Thread) EndTime: 11448
[9.204s] (Notification Thread) Duration: 0
[9.204s] (Notification Thread) MemoryUsageBeforeGC: init = 0(0K) used = 0(0K) committed = 0(0K) max = 0(0K)
[9.204s] (Notification Thread) MemoryUsageAfterGC: init = 0(0K) used = 0(0K) committed = 0(0K) max = 0(0K)
[9.204s] (Notification Thread)
[9.204s] (Notification Thread) ERROR: Cause
[9.245s] (Notification Thread) ZGC Cycles (com.sun.management.gc.notification)
[9.245s] (Notification Thread) Id: 3
[9.245s] (Notification Thread) Action: end of GC cycle
[9.245s] (Notification Thread) Cause: CodeCache GC Threshold
[9.245s] (Notification Thread) StartTime: 11328
[9.245s] (Notification Thread) EndTime: 11451
[9.245s] (Notification Thread) Duration: 123
[9.245s] (Notification Thread) MemoryUsageBeforeGC: init = 268435456(262144K) used = 12582912(12288K) committed = 268435456(262144K) max = 536870912(524288K)
[9.246s] (Notification Thread) MemoryUsageAfterGC: init = 268435456(262144K) used = 10485760(10240K) committed = 268435456(262144K) max = 536870912(524288K)
[9.246s] (Notification Thread)
[9.246s] (Notification Thread) ERROR: Cause
[9.246s] (Notification Thread) ZGC Pauses (com.sun.management.gc.notification)
[9.246s] (Notification Thread) Id: 10
[9.247s] (Notification Thread) Action: end of GC pause
[9.247s] (Notification Thread) Cause: System.gc()
[9.247s] (Notification Thread) StartTime: 14538
[9.247s] (Notification Thread) EndTime: 14538
[9.247s] (Notification Thread) Duration: 0
[9.247s] (Notification Thread) MemoryUsageBeforeGC: init = 0(0K) used = 0(0K) committed = 0(0K) max = 0(0K)
[9.247s] (Notification Thread) MemoryUsageAfterGC: init = 0(0K) used = 0(0K) committed = 0(0K) max = 0(0K)
[9.247s] (Notification Thread)
[9.247s] (Notification Thread) ZGC Pauses (com.sun.management.gc.notification)
[9.247s] (Notification Thread) Id: 11
[9.248s] (Notification Thread) Action: end of GC pause
[9.248s] (Notification Thread) Cause: System.gc()
[9.248s] (Notification Thread) StartTime: 14552
[9.248s] (Notification Thread) EndTime: 14552
[9.248s] (Notification Thread) Duration: 0
[9.248s] (Notification Thread) MemoryUsageBeforeGC: init = 0(0K) used = 0(0K) committed = 0(0K) max = 0(0K)
[9.248s] (Notification Thread) MemoryUsageAfterGC: init = 0(0K) used = 0(0K) committed = 0(0K) max = 0(0K)
[9.248s] (Notification Thread)
[9.248s] (Notification Thread) ZGC Pauses (com.sun.management.gc.notification)
[9.248s] (Notification Thread) Id: 12
[9.249s] (Notification Thread) Action: end of GC pause
[9.249s] (Notification Thread) Cause: System.gc()
[9.249s] (Notification Thread) StartTime: 14640
[9.249s] (Notification Thread) EndTime: 14640
[9.249s] (Notification Thread) Duration: 0
[9.249s] (Notification Thread) MemoryUsageBeforeGC: init = 0(0K) used = 0(0K) committed = 0(0K) max = 0(0K)
[9.249s] (Notification Thread) MemoryUsageAfterGC: init = 0(0K) used = 0(0K) committed = 0(0K) max = 0(0K)
[9.249s] (Notification Thread)
[9.249s] (Notification Thread) ZGC Cycles (com.sun.management.gc.notification)
[9.249s] (Notification Thread) Id: 4
[9.249s] (Notification Thread) Action: end of GC cycle
[9.249s] (Notification Thread) Cause: System.gc()
[9.249s] (Notification Thread) StartTime: 14537
[9.249s] (Notification Thread) EndTime: 14643
[9.249s] (Notification Thread) Duration: 106
[9.249s] (Notification Thread) MemoryUsageBeforeGC: init = 268435456(262144K) used = 16777216(16384K) committed = 268435456(262144K) max = 536870912(524288K)
[9.250s] (Notification Thread) MemoryUsageAfterGC: init = 268435456(262144K) used = 12582912(12288K) committed = 268435456(262144K) max = 536870912(524288K)
[9.250s] (Notification Thread)
[9.250s] (Notification Thread) ZGC Pauses (com.sun.management.gc.notification)
[9.250s] (Notification Thread) Id: 13
[9.250s] (Notification Thread) Action: end of GC pause
[9.250s] (Notification Thread) Cause: System.gc()
[9.250s] (Notification Thread) StartTime: 14644
[9.250s] (Notification Thread) EndTime: 14644
[9.250s] (Notification Thread) Duration: 0
[9.250s] (Notification Thread) MemoryUsageBeforeGC: init = 0(0K) used = 0(0K) committed = 0(0K) max = 0(0K)
[9.250s] (Notification Thread) MemoryUsageAfterGC: init = 0(0K) used = 0(0K) committed = 0(0K) max = 0(0K)
[9.250s] (Notification Thread)
[9.251s] (Notification Thread) ZGC Pauses (com.sun.management.gc.notification)
[9.252s] (Notification Thread) Id: 14
[9.252s] (Notification Thread) Action: end of GC pause
[9.252s] (Notification Thread) Cause: System.gc()
[9.252s] (Notification Thread) StartTime: 14662
[9.252s] (Notification Thread) EndTime: 14662
[9.252s] (Notification Thread) Duration: 0
[9.252s] (Notification Thread) MemoryUsageBeforeGC: init = 0(0K) used = 0(0K) committed = 0(0K) max = 0(0K)
[9.252s] (Notification Thread) MemoryUsageAfterGC: init = 0(0K) used = 0(0K) committed = 0(0K) max = 0(0K)
[9.252s] (Notification Thread)
[9.252s] (Notification Thread) ZGC Pauses (com.sun.management.gc.notification)
[9.252s] (Notification Thread) Id: 15
[9.252s] (Notification Thread) Action: end of GC pause
[9.252s] (Notification Thread) Cause: System.gc()
[9.252s] (Notification Thread) StartTime: 14705
[9.252s] (Notification Thread) EndTime: 14705
[9.252s] (Notification Thread) Duration: 0
[9.253s] (Notification Thread) MemoryUsageBeforeGC: init = 0(0K) used = 0(0K) committed = 0(0K) max = 0(0K)
[9.253s] (Notification Thread) MemoryUsageAfterGC: init = 0(0K) used = 0(0K) committed = 0(0K) max = 0(0K)
[9.253s] (Notification Thread)
[9.253s] (Notification Thread) ZGC Cycles (com.sun.management.gc.notification)
[9.253s] (Notification Thread) Id: 5
[9.253s] (Notification Thread) Action: end of GC cycle
[9.253s] (Notification Thread) Cause: System.gc()
[9.254s] (Notification Thread) StartTime: 14644
[9.254s] (Notification Thread) EndTime: 14707
[9.254s] (Notification Thread) Duration: 63
[9.254s] (Notification Thread) MemoryUsageBeforeGC: init = 268435456(262144K) used = 14680064(14336K) committed = 268435456(262144K) max = 536870912(524288K)
[9.254s] (Notification Thread) MemoryUsageAfterGC: init = 268435456(262144K) used = 12582912(12288K) committed = 268435456(262144K) max = 536870912(524288K)
[9.254s] (Notification Thread)
[9.255s] (Notification Thread) ZGC Pauses (com.sun.management.gc.notification)
[9.255s] (Notification Thread) Id: 16
[9.255s] (Notification Thread) Action: end of GC pause
[9.255s] (Notification Thread) Cause: System.gc()
[9.255s] (Notification Thread) StartTime: 14709
[9.255s] (Notification Thread) EndTime: 14709
[9.255s] (Notification Thread) Duration: 0
[9.255s] (Notification Thread) MemoryUsageBeforeGC: init = 0(0K) used = 0(0K) committed = 0(0K) max = 0(0K)
[9.255s] (Notification Thread) MemoryUsageAfterGC: init = 0(0K) used = 0(0K) committed = 0(0K) max = 0(0K)
[9.255s] (Notification Thread)
[9.256s] (Notification Thread) ZGC Pauses (com.sun.management.gc.notification)
[9.256s] (Notification Thread) Id: 17
[9.256s] (Notification Thread) Action: end of GC pause
[9.256s] (Notification Thread) Cause: System.gc()
[9.256s] (Notification Thread) StartTime: 14726
[9.256s] (Notification Thread) EndTime: 14727
[9.256s] (Notification Thread) Duration: 1
[9.256s] (Notification Thread) MemoryUsageBeforeGC: init = 0(0K) used = 0(0K) committed = 0(0K) max = 0(0K)
[9.256s] (Notification Thread) MemoryUsageAfterGC: init = 0(0K) used = 0(0K) committed = 0(0K) max = 0(0K)
[9.256s] (Notification Thread)
[9.256s] (Notification Thread) ZGC Pauses (com.sun.management.gc.notification)
[9.256s] (Notification Thread) Id: 18
[9.256s] (Notification Thread) Action: end of GC pause
[9.257s] (Notification Thread) Cause: System.gc()
[9.257s] (Notification Thread) StartTime: 14779
[9.257s] (Notification Thread) EndTime: 14779
[9.257s] (Notification Thread) Duration: 0
[9.257s] (Notification Thread) MemoryUsageBeforeGC: init = 0(0K) used = 0(0K) committed = 0(0K) max = 0(0K)
[9.257s] (Notification Thread) MemoryUsageAfterGC: init = 0(0K) used = 0(0K) committed = 0(0K) max = 0(0K)
[9.257s] (Notification Thread)
[9.276s] (Notification Thread) ZGC Cycles (com.sun.management.gc.notification)
[9.276s] (Notification Thread) Id: 6
[9.276s] (Notification Thread) Action: end of GC cycle
[9.276s] (Notification Thread) Cause: System.gc()
[9.276s] (Notification Thread) StartTime: 14709
[9.276s] (Notification Thread) EndTime: 14781
[9.276s] (Notification Thread) Duration: 72
[9.276s] (Notification Thread) MemoryUsageBeforeGC: init = 268435456(262144K) used = 14680064(14336K) committed = 268435456(262144K) max = 536870912(524288K)
[9.276s] (Notification Thread) MemoryUsageAfterGC: init = 268435456(262144K) used = 10485760(10240K) committed = 268435456(262144K) max = 536870912(524288K)
[9.276s] (Notification Thread)
[9.278s] (Notification Thread) ZGC Pauses (com.sun.management.gc.notification)
[9.278s] (Notification Thread) Id: 19
[9.278s] (Notification Thread) Action: end of GC pause
[9.278s] (Notification Thread) Cause: System.gc()
[9.278s] (Notification Thread) StartTime: 14782
[9.278s] (Notification Thread) EndTime: 14782
[9.278s] (Notification Thread) Duration: 0
[9.278s] (Notification Thread) MemoryUsageBeforeGC: init = 0(0K) used = 0(0K) committed = 0(0K) max = 0(0K)
[9.278s] (Notification Thread) MemoryUsageAfterGC: init = 0(0K) used = 0(0K) committed = 0(0K) max = 0(0K)
[9.278s] (Notification Thread)
[9.279s] (Notification Thread) ZGC Pauses (com.sun.management.gc.notification)
[9.279s] (Notification Thread) Id: 20
[9.279s] (Notification Thread) Action: end of GC pause
[9.279s] (Notification Thread) Cause: System.gc()
[9.279s] (Notification Thread) StartTime: 14792
[9.279s] (Notification Thread) EndTime: 14792
[9.279s] (Notification Thread) Duration: 0
[9.279s] (Notification Thread) MemoryUsageBeforeGC: init = 0(0K) used = 0(0K) committed = 0(0K) max = 0(0K)
[9.279s] (Notification Thread) MemoryUsageAfterGC: init = 0(0K) used = 0(0K) committed = 0(0K) max = 0(0K)
[9.279s] (Notification Thread)
[9.279s] (Notification Thread) ZGC Pauses (com.sun.management.gc.notification)
[9.279s] (Notification Thread) Id: 21
[9.280s] (Notification Thread) Action: end of GC pause
[9.280s] (Notification Thread) Cause: System.gc()
[9.280s] (Notification Thread) StartTime: 14820
[9.280s] (Notification Thread) EndTime: 14820
[9.280s] (Notification Thread) Duration: 0
[9.280s] (Notification Thread) MemoryUsageBeforeGC: init = 0(0K) used = 0(0K) committed = 0(0K) max = 0(0K)
[9.280s] (Notification Thread) MemoryUsageAfterGC: init = 0(0K) used = 0(0K) committed = 0(0K) max = 0(0K)
[9.280s] (Notification Thread)
[9.280s] (Notification Thread) ZGC Cycles (com.sun.management.gc.notification)
[9.280s] (Notification Thread) Id: 7
[9.280s] (Notification Thread) Action: end of GC cycle
[9.280s] (Notification Thread) Cause: System.gc()
[9.280s] (Notification Thread) StartTime: 14782
[9.280s] (Notification Thread) EndTime: 14823
[9.280s] (Notification Thread) Duration: 41
[9.280s] (Notification Thread) MemoryUsageBeforeGC: init = 268435456(262144K) used = 10485760(10240K) committed = 268435456(262144K) max = 536870912(524288K)
[9.280s] (Notification Thread) MemoryUsageAfterGC: init = 268435456(262144K) used = 12582912(12288K) committed = 268435456(262144K) max = 536870912(524288K)
[9.280s] (Notification Thread)
[9.281s] (Notification Thread) ZGC Pauses (com.sun.management.gc.notification)
[9.281s] (Notification Thread) Id: 22
[9.281s] (Notification Thread) Action: end of GC pause
[9.281s] (Notification Thread) Cause: System.gc()
[9.281s] (Notification Thread) StartTime: 14824
[9.281s] (Notification Thread) EndTime: 14824
[9.281s] (Notification Thread) Duration: 0
[9.281s] (Notification Thread) MemoryUsageBeforeGC: init = 0(0K) used = 0(0K) committed = 0(0K) max = 0(0K)
[9.281s] (Notification Thread) MemoryUsageAfterGC: init = 0(0K) used = 0(0K) committed = 0(0K) max = 0(0K)
[9.281s] (Notification Thread)
[9.282s] (Notification Thread) ZGC Pauses (com.sun.management.gc.notification)
[9.282s] (Notification Thread) Id: 23
[9.282s] (Notification Thread) Action: end of GC pause
[9.282s] (Notification Thread) Cause: System.gc()
[9.282s] (Notification Thread) StartTime: 14834
[9.282s] (Notification Thread) EndTime: 14834
[9.282s] (Notification Thread) Duration: 0
[9.282s] (Notification Thread) MemoryUsageBeforeGC: init = 0(0K) used = 0(0K) committed = 0(0K) max = 0(0K)
[9.282s] (Notification Thread) MemoryUsageAfterGC: init = 0(0K) used = 0(0K) committed = 0(0K) max = 0(0K)
[9.282s] (Notification Thread)
[9.282s] (Notification Thread) ZGC Pauses (com.sun.management.gc.notification)
[9.283s] (Notification Thread) Id: 24
[9.283s] (Notification Thread) Action: end of GC pause
[9.283s] (Notification Thread) Cause: System.gc()
[9.283s] (Notification Thread) StartTime: 14874
[9.283s] (Notification Thread) EndTime: 14874
[9.283s] (Notification Thread) Duration: 0
[9.283s] (Notification Thread) MemoryUsageBeforeGC: init = 0(0K) used = 0(0K) committed = 0(0K) max = 0(0K)
[9.283s] (Notification Thread) MemoryUsageAfterGC: init = 0(0K) used = 0(0K) committed = 0(0K) max = 0(0K)
[9.283s] (Notification Thread)
[9.283s] (Notification Thread) ZGC Cycles (com.sun.management.gc.notification)
[9.283s] (Notification Thread) Id: 8
[9.283s] (Notification Thread) Action: end of GC cycle
[9.283s] (Notification Thread) Cause: System.gc()
[9.283s] (Notification Thread) StartTime: 14824
[9.283s] (Notification Thread) EndTime: 14876
[9.283s] (Notification Thread) Duration: 52
[9.283s] (Notification Thread) MemoryUsageBeforeGC: init = 268435456(262144K) used = 12582912(12288K) committed = 268435456(262144K) max = 536870912(524288K)
[9.283s] (Notification Thread) MemoryUsageAfterGC: init = 268435456(262144K) used = 8388608(8192K) committed = 268435456(262144K) max = 536870912(524288K)
[9.283s] (Notification Thread)
[10.110s] (MainThread) All events received!
[10.110s] (MainThread) minCycles: 5
[10.111s] (MainThread) minPauses: 15
[10.112s] (MainThread) actualCycles: 6
[10.113s] (MainThread) actualPauses: 18
[10.113s] (MainThread) actualErrors: 4
----------System.err:(11/616)----------
java.lang.Exception: Unexpected errors
at gc.x.TestGarbageCollectorMXBean.main(TestGarbageCollectorMXBean.java:217)
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.Exception: Unexpected errors
JavaTest Message: shutting down test

STATUS:Failed.`main' threw exception: java.lang.Exception: Unexpected errors