RestStoreTest.tearDown intermittent failure

      io.netty.channel.ChannelException: eventfd_write() failed: Bad file descriptor
	at io.netty.channel.epoll.Native.eventFdWrite(Native Method)
	at io.netty.channel.epoll.EpollEventLoop.wakeup(EpollEventLoop.java:126)
	at io.netty.util.concurrent.SingleThreadEventExecutor.shutdownGracefully(SingleThreadEventExecutor.java:589)
	at io.netty.util.concurrent.MultithreadEventExecutorGroup.shutdownGracefully(MultithreadEventExecutorGroup.java:163)
	at org.infinispan.server.core.transport.NettyTransport.stop(NettyTransport.java:161)
	at org.infinispan.server.core.AbstractProtocolServer.stop(AbstractProtocolServer.java:144)
	at org.infinispan.persistence.rest.RestStoreTest.tearDown(RestStoreTest.java:73)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
... Removed 18 stack frames