java/nio/channels/Selector/ChangingInterests.java timeout intermittently (low frequency though), observed at solaris-x64

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attach some important call stack here in case logs are removed in future.

"SameVMThread" #163 prio=5 os_prio=64 tid=0x0000000003c27800 nid=0xdb runnable [0xffff80ff997fd000]
   java.lang.Thread.State: RUNNABLE
at sun.nio.ch.ServerSocketChannelImpl.accept0(Native Method)
at sun.nio.ch.ServerSocketChannelImpl.accept(ServerSocketChannelImpl.java:422)
at sun.nio.ch.ServerSocketChannelImpl.accept(ServerSocketChannelImpl.java:250)
- locked <0x00000000e2cf76e8> (a java.lang.Object)
at ChangingInterests.main(ChangingInterests.java:143)
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:804)