java/nio/channels/ServerSocketChannel/NonBlockingAccept.java fails intermittently.

----------System.err:(13/728)----------
java.nio.channels.IllegalBlockingModeException
at sun.nio.ch.ServerSocketAdaptor.accept(ServerSocketAdaptor.java:102)
at NonBlockingAccept.main(NonBlockingAccept.java:61)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:520)
at com.sun.javatest.regtest.agent.MainActionHelper$SameVMRunnable.run(MainActionHelper.java:218)
at java.lang.Thread.run(Thread.java:747)

JavaTest Message: Test threw exception: java.nio.channels.IllegalBlockingModeException
JavaTest Message: shutting down test

result: Failed. Execution failed: `main' threw exception: java.nio.channels.IllegalBlockingModeException