java/nio/channels/FileChannel/LargeGatheringWrite.java fails to terminate correctly

java/nio/channels/FileChannel/LargeGatheringWrite.java has been seen to fail, but has actually passed. It is that it has not terminated in a timely manner so that jtreg agentvm reaps the test execution thread.

So this is a placeholder to record the failure.

It may be an issue with agentvm execution mode and jtreg reaper protocol