[ 
https://issues.apache.org/jira/browse/AMQ-7193?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16831693#comment-16831693
 ] 

ASF subversion and git services commented on AMQ-7193:
------------------------------------------------------

Commit 7404b43f2d9c5bbf4ab4ec89ae111d5bf1527d82 in activemq's branch 
refs/heads/master from gtully
[ https://gitbox.apache.org/repos/asf?p=activemq.git;h=7404b43 ]

AMQ-7193 - resolve intermittent NPE on duplex network connector start; wait for 
start completion before dispatching inbound messages, fix and test


> duplex network connector with pending forwards - intermittent NPE on startup
> ----------------------------------------------------------------------------
>
>                 Key: AMQ-7193
>                 URL: https://issues.apache.org/jira/browse/AMQ-7193
>             Project: ActiveMQ
>          Issue Type: Bug
>          Components: Broker, networkbridge
>    Affects Versions: 5.15.0
>            Reporter: Gary Tully
>            Assignee: Gary Tully
>            Priority: Major
>             Fix For: 5.16.0
>
>
> occasional NPE on duplex network bridge start, dispatch during startup issue. 
> NPE
> {code:java}
> 2019-05-02 16:16:25,116 [0.1:53461@53456] - WARN 
> DemandForwardingBridgeSupport - Network connection between vm://B1#10 and 
> tcp:///127.0.0.1:53461@53456 shutdown due to a remote error: {}
> java.lang.NullPointerException
>  at 
> org.apache.activemq.network.DemandForwardingBridgeSupport.serviceRemoteCommand(DemandForwardingBridgeSupport.java:815)
>  at 
> org.apache.activemq.network.DemandForwardingBridgeSupport$3.onCommand(DemandForwardingBridgeSupport.java:238)
>  at 
> org.apache.activemq.transport.ResponseCorrelator.onCommand(ResponseCorrelator.java:116)
>  at 
> org.apache.activemq.transport.MutexTransport.onCommand(MutexTransport.java:50)
>  at 
> org.apache.activemq.transport.WireFormatNegotiator.onCommand(WireFormatNegotiator.java:125)
>  at 
> org.apache.activemq.transport.AbstractInactivityMonitor.onCommand(AbstractInactivityMonitor.java:301)
>  at 
> org.apache.activemq.transport.TransportSupport.doConsume(TransportSupport.java:83)
>  at 
> org.apache.activemq.transport.tcp.TcpTransport.doRun(TcpTransport.java:233)
>  at org.apache.activemq.transport.tcp.TcpTransport.run(TcpTransport.java:215)
>  at java.lang.Thread.run(Thread.java:748)
>  {code}



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