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<p class="MsoNormal"><span style="color:#1F497D">Hi,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Getting following error in console of server B when making any change in Workbench server A<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">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<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; at org.uberfire.metadata.io.IOServiceIndexedImpl.setupWatchService(IOServiceIndexedImpl.java:168) [uberfire-metadata-commons-io-0.3.1.Final.jar:0.3.1.Final]<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; at org.uberfire.metadata.io.IOServiceIndexedImpl.getFileSystem(IOServiceIndexedImpl.java:126) [uberfire-metadata-commons-io-0.3.1.Final.jar:0.3.1.Final]<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; at org.uberfire.io.impl.cluster.IOServiceClusterImpl$SyncFileSystemMessageHandler.handleMessage(IOServiceClusterImpl.java:919) [uberfire-io-0.3.1.Final.jar:0.3.1.Final]<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; at org.uberfire.io.impl.cluster.helix.ClusterServiceHelix$MessageHandlerResolverWrapper$1$1.handleMessage(ClusterServiceHelix.java:289) [uberfire-io-0.3.1.Final.jar:0.3.1.Final]<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; at org.apache.helix.messaging.handling.HelixTask.call(HelixTask.java:93) [helix-core-0.6.2-incubating.jar:0.6.2-incubating]<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;at org.apache.helix.messaging.handling.HelixTask.call(HelixTask.java:50) [helix-core-0.6.2-incubating.jar:0.6.2-incubating]<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334) [rt.jar:1.7.0_25]<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; at java.util.concurrent.FutureTask.run(FutureTask.java:166) [rt.jar:1.7.0_25]<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [rt.jar:1.7.0_25]<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [rt.jar:1.7.0_25]<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; at java.lang.Thread.run(Thread.java:724) [rt.jar:1.7.0_25]<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">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<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">14:44:20,985 INFO&nbsp; [org.apache.helix.messaging.handling.HelixTaskExecutor] (pool-18-thread-21) message finished: 939154ed-eedb-493f-a803-83883764276a, took 1260<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">14:44:20,995 INFO&nbsp; [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<o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="color:#1F497D"><o:p>&nbsp;</o:p></span></b></p>
<p class="MsoNormal">Regards,<o:p></o:p></p>
<p class="MsoNormal">Zahid Ahmed<o:p></o:p></p>
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