Issue

• Cluster-wide rebalance failed with the following NPE and resulted to a severe clustering issue like multiple singletons.

 ERROR [org.infinispan.topology.ClusterTopologyManagerImpl] (transport-thread-2) ISPN000196: Failed to recover cluster state after the current node became the coordinator: java.lang.NullPointerException
        at org.infinispan.topology.ClusterTopologyManagerImpl.recoverClusterStatus(ClusterTopologyManagerImpl.java:454)
        at org.infinispan.topology.ClusterTopologyManagerImpl.handleNewView(ClusterTopologyManagerImpl.java:234)
        at org.infinispan.topology.ClusterTopologyManagerImpl$ClusterViewListener$1.run(ClusterTopologyManagerImpl.java:625)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) [rt.jar:1.7.0_72]
        at java.util.concurrent.FutureTask.run(FutureTask.java:262) [rt.jar:1.7.0_72]
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [rt.jar:1.7.0_72]
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [rt.jar:1.7.0_72]
        at java.lang.Thread.run(Thread.java:745) [rt.jar:1.7.0_72]