This has been observed once on Mac OSX

----------System.out:(32/2144)----------
@Stable: enabled
compiler.stable.TestStableObject$DefaultValue: PASSED
compiler.stable.TestStableObject$ObjectStable: FAILED
java.lang.AssertionError: B != A
at compiler.stable.TestStableObject.assertEquals(TestStableObject.java:600)
at compiler.stable.TestStableObject$ObjectStable.test(TestStableObject.java:123)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at compiler.stable.TestStableObject.run(TestStableObject.java:609)
at compiler.stable.TestStableObject.main(TestStableObject.java:68)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at com.sun.javatest.regtest.agent.MainWrapper$MainThread.run(MainWrapper.java:115)
at java.base/java.lang.Thread.run(Thread.java:832)
compiler.stable.TestStableObject$DefaultStaticValue: PASSED
compiler.stable.TestStableObject$StaticObjectStable: PASSED
compiler.stable.TestStableObject$VolatileObjectStable: PASSED
compiler.stable.TestStableObject$ObjectArrayDim1: PASSED
compiler.stable.TestStableObject$ObjectArrayDim2: PASSED
compiler.stable.TestStableObject$ObjectArrayDim3: PASSED
compiler.stable.TestStableObject$ObjectArrayDim4: PASSED
compiler.stable.TestStableObject$ObjectArrayLowerDim0: PASSED
compiler.stable.TestStableObject$ObjectArrayLowerDim1: PASSED
compiler.stable.TestStableObject$ObjectArrayLowerDim2: PASSED
compiler.stable.TestStableObject$NestedStableField: PASSED
compiler.stable.TestStableObject$NestedStableField1: PASSED
compiler.stable.TestStableObject$NestedStableField2: PASSED
compiler.stable.TestStableObject$NestedStableField3: PASSED
----------System.err:(13/764)----------
java.lang.Error: TEST FAILED
at compiler.stable.TestStableObject.main(TestStableObject.java:91)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at com.sun.javatest.regtest.agent.MainWrapper$MainThread.run(MainWrapper.java:115)
at java.base/java.lang.Thread.run(Thread.java:832)