Hi,

Getting following error in console of server B when making any change in 
Workbench server A

14:44:19,780 ERROR [org.apache.helix.messaging.handling.HelixTask] 
(pool-18-thread-21) Exception while executing a message. 
java.lang.NullPointerException msgId: 939154ed-eedb-493f-a803-83883764276a 
type: USER_DEFINE_MSG: java.lang.NullPointerException
        at 
org.uberfire.metadata.io.IOServiceIndexedImpl.setupWatchService(IOServiceIndexedImpl.java:168)
 [uberfire-metadata-commons-io-0.3.1.Final.jar:0.3.1.Final]
        at 
org.uberfire.metadata.io.IOServiceIndexedImpl.getFileSystem(IOServiceIndexedImpl.java:126)
 [uberfire-metadata-commons-io-0.3.1.Final.jar:0.3.1.Final]
        at 
org.uberfire.io.impl.cluster.IOServiceClusterImpl$SyncFileSystemMessageHandler.handleMessage(IOServiceClusterImpl.java:919)
 [uberfire-io-0.3.1.Final.jar:0.3.1.Final]
        at 
org.uberfire.io.impl.cluster.helix.ClusterServiceHelix$MessageHandlerResolverWrapper$1$1.handleMessage(ClusterServiceHelix.java:289)
 [uberfire-io-0.3.1.Final.jar:0.3.1.Final]
        at 
org.apache.helix.messaging.handling.HelixTask.call(HelixTask.java:93) 
[helix-core-0.6.2-incubating.jar:0.6.2-incubating]
        at 
org.apache.helix.messaging.handling.HelixTask.call(HelixTask.java:50) 
[helix-core-0.6.2-incubating.jar:0.6.2-incubating]
        at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334) 
[rt.jar:1.7.0_25]
        at java.util.concurrent.FutureTask.run(FutureTask.java:166) 
[rt.jar:1.7.0_25]
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) 
[rt.jar:1.7.0_25]
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) 
[rt.jar:1.7.0_25]
        at java.lang.Thread.run(Thread.java:724) [rt.jar:1.7.0_25]

14:44:20,506 ERROR [org.apache.helix.messaging.handling.HelixTask] 
(pool-18-thread-21) Message execution failed. msgId: 
939154ed-eedb-493f-a803-83883764276a, errorMsg: null
14:44:20,985 INFO  [org.apache.helix.messaging.handling.HelixTaskExecutor] 
(pool-18-thread-21) message finished: 939154ed-eedb-493f-a803-83883764276a, 
took 1260
14:44:20,995 INFO  [org.apache.helix.manager.zk.CallbackHandler] 
(ZkClient-EventThread-117-localhost:2199) 117 START:INVOKE 
/brms-cluster/INSTANCES/nodeTwo_22/MESSAGES 
listener:org.apache.helix.messaging.handling.HelixTaskExecutor

Regards,
Zahid Ahmed
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