NPE in InfinispanBeanManager.getWeakAffinity in split-brain test case

06:10:50,514 ERROR [org.jboss.as.ejb3.remote] (default task-82) WFLYEJB0150: Could not write method invocation failure for method public abstract int org.jboss.test.clusterbench.common.ejb.CommonStatefulSB.getSerialAndIncrement() on bean named RemoteStatefulSBImpl for appname clusterbench-ee7 modulename clusterbench-ee7-ejb distinctname  due to: java.lang.NullPointerException
	at org.wildfly.clustering.ejb.infinispan.InfinispanBeanManager.getWeakAffinity(InfinispanBeanManager.java:185)
	at org.jboss.as.ejb3.cache.distributable.DistributableCache.getWeakAffinity(DistributableCache.java:71)
	at org.jboss.as.ejb3.remote.protocol.versionone.MethodInvocationMessageHandler.getWeakAffinity(MethodInvocationMessageHandler.java:260)
	at org.jboss.as.ejb3.remote.protocol.versionone.MethodInvocationMessageHandler.access$500(MethodInvocationMessageHandler.java:68)
	at org.jboss.as.ejb3.remote.protocol.versionone.MethodInvocationMessageHandler$1.run(MethodInvocationMessageHandler.java:230)
	at org.jboss.as.ejb3.remote.protocol.versionone.MethodInvocationMessageHandler.processMessage(MethodInvocationMessageHandler.java:254)
	at org.jboss.as.ejb3.remote.protocol.versionone.VersionOneProtocolChannelReceiver.processMessage(VersionOneProtocolChannelReceiver.java:213)
	at org.jboss.as.ejb3.remote.protocol.versiontwo.VersionTwoProtocolChannelReceiver.processMessage(VersionTwoProtocolChannelReceiver.java:76)
	at org.jboss.as.ejb3.remote.protocol.versionone.VersionOneProtocolChannelReceiver.handleMessage(VersionOneProtocolChannelReceiver.java:159)
	at org.jboss.remoting3.remote.RemoteConnectionChannel$5.run(RemoteConnectionChannel.java:456)
	at org.jboss.remoting3.EndpointImpl$TrackingExecutor$1.run(EndpointImpl.java:717)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)