java/nio/channels/Selector/SelectAndClose.java fails intermittently.

----------System.err:(12/721)----------
java.lang.RuntimeException: Select did not wake up
at SelectAndClose.main(SelectAndClose.java:75)
at sun.reflect.NativeMethodAccessorImpl.invoke0(java.base@9-ea/Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(java.base@9-ea/NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(java.base@9-ea/DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(java.base@9-ea/Method.java:531)
at com.sun.javatest.regtest.agent.MainActionHelper$SameVMRunnable.run(MainActionHelper.java:226)
at java.lang.Thread.run(java.base@9-ea/Thread.java:804)


================================
Stacktrace

Execution failed: `main' threw exception: java.lang.RuntimeException: Select did not wake up
Standard Output

     
Standard Error:
java.lang.RuntimeException: Select did not wake up
at SelectAndClose.main(SelectAndClose.java:76)
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(java.base@9-ea/Native Method)
at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(java.base@9-ea/NativeMethodAccessorImpl.java:62)
at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(java.base@9-ea/DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(java.base@9-ea/Method.java:531)
at com.sun.javatest.regtest.agent.MainActionHelper$SameVMRunnable.run(MainActionHelper.java:226)
at java.lang.Thread.run(java.base@9-ea/Thread.java:804)

JavaTest Message: Test threw exception: java.lang.RuntimeException
JavaTest Message: shutting down test