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CLOSED  Bug report JPPF-312  -  NPE in ClientClassNioServer.getProviderConnections()
Posted Aug 18, 2014 - updated Aug 15, 2018
icon_info.png This issue has been closed with status "Closed" and resolution "RESOLVED".
Issue details
  • Type of issue
    Bug report
  • Status
     
    		 Closed
  • Assigned to
    lolo4j
  • Progress
       
  • Type of bug
    Not triaged
  • Likelihood
    Not triaged
  • Effect
    Not triaged
  • Posted by
    lolo4j
  • Owned by
    Not owned by anyone
  • Category
    Server
  • Resolution
    RESOLVED
  • Priority
    Normal
  • Reproducability
    Rarely
  • Severity
    Normal
  • Targetted for
    icon_milestones.png JPPF 4.2.x
Issue description
From this forum post. The following exception has been observed in the driver: 
16:24:13,723 DEBUG StateTransitionTask:89 - error on channel SelectionKeyWrapper[id=188, readyOps=1, interestOps=0, context=channel=SelectionKeyWrapper[id=188],
state=WAITING_NODE_REQUEST, resource=null, pendingResponses=0, type=node, peer=false, uuid=8104C36B-0CE3-FCA5-0586-DD462381BD70, secure=false, ssl=false] : java.lang.NullPointerException
  at java.util.ArrayList.<init>(ArrayList.java:168)
  at org.jppf.server.nio.classloader.client.ClientClassNioServer.getProviderConnections(ClientClassNioServer.java:165)
  at org.jppf.server.nio.classloader.node.WaitingNodeRequestState.findProviderConnection(WaitingNodeRequestState.java:198)
  at org.jppf.server.nio.classloader.node.WaitingNodeRequestState.processDynamic(WaitingNodeRequestState.java:173)
  at org.jppf.server.nio.classloader.node.WaitingNodeRequestState.processResource(WaitingNodeRequestState.java:105)
  at org.jppf.server.nio.classloader.node.WaitingNodeRequestState.performTransition(WaitingNodeRequestState.java:86)
  at org.jppf.server.nio.classloader.node.WaitingNodeRequestState.performTransition(WaitingNodeRequestState.java:39)
  at org.jppf.nio.StateTransitionTask.run(StateTransitionTask.java:82)
  at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
  at java.util.concurrent.FutureTask.run(FutureTask.java:266)
  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
  at java.lang.Thread.run(Thread.java:745)
Steps to reproduce this issue
N/A

#3
Comment posted by
lolo4j
Aug 18, 21:22
Fixed in: