NPE and Deadlock during server start

12:13:07,787 INFO  [org.infinispan.factories.GlobalComponentRegistry] (MSC service thread 1-4) ISPN000128: Infinispan version: Infinispan 'Ruppaner' 9.0.0-SNAPSHOT
12:13:08,159 INFO  [org.jboss.as.clustering.infinispan] (MSC service thread 1-4) DGISPN0001: Started memcachedCache cache from clustered container
12:13:08,159 INFO  [org.jboss.as.clustering.infinispan] (MSC service thread 1-2) DGISPN0001: Started default cache from clustered container
12:13:08,181 INFO  [org.infinispan.server.endpoint] (MSC service thread 1-4) DGENDPT10000: MemcachedServer starting
12:13:08,181 INFO  [org.infinispan.server.endpoint] (MSC service thread 1-3) DGENDPT10000: HotRodServer starting
12:13:08,182 INFO  [org.infinispan.server.endpoint] (MSC service thread 1-4) DGENDPT10001: MemcachedServer listening on 127.0.0.1:11211
12:13:08,182 INFO  [org.infinispan.server.endpoint] (MSC service thread 1-3) DGENDPT10001: HotRodServer listening on 127.0.0.1:11222
12:13:08,188 INFO  [org.infinispan.server.endpoint] (MSC service thread 1-1) DGENDPT10000: REST starting
12:13:08,259 WARNING [io.netty.channel.epoll.EpollEventLoop] (MemcachedServerMaster-1-1) Unexpected exception in the selector loop.: java.lang.NullPointerException
	at io.netty.util.internal.shaded.org.jctools.queues.MpscChunkedArrayQueue.poll(MpscChunkedArrayQueue.java:264)
	at io.netty.util.concurrent.SingleThreadEventExecutor.pollTaskFrom(SingleThreadEventExecutor.java:223)
	at io.netty.util.concurrent.SingleThreadEventExecutor.pollTask(SingleThreadEventExecutor.java:218)
	at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:408)
	at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:306)
	at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:873)
	at io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:144)
	at java.lang.Thread.run(Thread.java:745)

12:13:08,338 INFO  [org.infinispan.rest.NettyRestServer] (MSC service thread 1-1) ISPN012003: REST server starting, listening on 127.0.0.1:8080
12:13:08,338 INFO  [org.infinispan.server.endpoint] (MSC service thread 1-1) DGENDPT10002: REST mapped to /rest