java/nio/channels/FileChannel/InterruptDeadlock.java timed out intermittently.

Found one Java-level deadlock:
=============================
"Thread-13":
  waiting to lock monitor 0x00007fe1058b8200 (object 0x00000007ab596768, a java.lang.Object),
  which is held by "SameVMThread"
"SameVMThread":
  waiting to lock monitor 0x00007fe107013c00 (object 0x00000007ab596050, a java.lang.Object),
  which is held by "Thread-13"

Java stack information for the threads listed above:
===================================================
"Thread-13":
at java.lang.Thread.interrupt(Thread.java:975)
- waiting to lock <0x00000007ab596768> (a java.lang.Object)
at sun.nio.ch.NativeThreadSet.signalAndWait(NativeThreadSet.java:109)
- locked <0x00000007ab596060> (a sun.nio.ch.NativeThreadSet)
at sun.nio.ch.FileChannelImpl.implCloseChannel(FileChannelImpl.java:130)
at java.nio.channels.spi.AbstractInterruptibleChannel$1.interrupt(AbstractInterruptibleChannel.java:162)
- locked <0x00000007ab596050> (a java.lang.Object)
at java.nio.channels.spi.AbstractInterruptibleChannel.begin(AbstractInterruptibleChannel.java:170)
at sun.nio.ch.FileChannelImpl.size(FileChannelImpl.java:306)
- locked <0x00000007ab596098> (a java.lang.Object)
at InterruptDeadlock$Reader.run(InterruptDeadlock.java:61)
"SameVMThread":
at java.nio.channels.spi.AbstractInterruptibleChannel$1.interrupt(AbstractInterruptibleChannel.java:157)
- waiting to lock <0x00000007ab596050> (a java.lang.Object)
at java.lang.Thread.interrupt(Thread.java:978)
- locked <0x00000007ab596768> (a java.lang.Object)
at InterruptDeadlock.main(InterruptDeadlock.java:110)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:520)
at com.sun.javatest.regtest.agent.MainActionHelper$SameVMRunnable.run(MainActionHelper.java:218)
at java.lang.Thread.run(Thread.java:804)

Found 1 deadlock.

--- Timeout information end.
elapsed time (seconds): 480.567