java.lang.NullPointerException

GitHub | rminchev1 | 3 months ago
  1. 0

    Server session hangs.

    GitHub | 3 months ago | rminchev1
    java.lang.NullPointerException
  2. 0

    Android: Saving Map State in Google map

    Stack Overflow | 11 months ago | Junie Negentien
    java.lang.RuntimeException: Unable to resume activity {com.ourThesis.junieNegentien2015/com.ourThesis.junieNegentien2015.MainActivity}: java.lang.NullPointerException
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    Root Cause Analysis

    1. java.lang.NullPointerException

      No message provided

      at net.hawkengine.ws.SessionPool.lambda$sendToUserSessions$0()
    2. net.hawkengine.ws
      SessionPool.lambda$sendToUserSessions$0
      1. net.hawkengine.ws.SessionPool.lambda$sendToUserSessions$0(SessionPool.java:73)
      1 frame
    3. Java RT
      ReferencePipeline.collect
      1. java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:174)
      2. java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1374)
      3. java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481)
      4. java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471)
      5. java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708)
      6. java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
      7. java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:499)
      7 frames
    4. net.hawkengine.ws
      WsEndpoint.onWebSocketConnect
      1. net.hawkengine.ws.SessionPool.sendToUserSessions(SessionPool.java:74)
      2. net.hawkengine.ws.WsEndpoint.onWebSocketConnect(WsEndpoint.java:100)
      2 frames
    5. Jetty
      SelectChannelEndPoint$2.run
      1. org.eclipse.jetty.websocket.common.events.JettyListenerEventDriver.onConnect(JettyListenerEventDriver.java:106)
      2. org.eclipse.jetty.websocket.common.events.AbstractEventDriver.openSession(AbstractEventDriver.java:229)
      3. org.eclipse.jetty.websocket.common.WebSocketSession.open(WebSocketSession.java:489)
      4. org.eclipse.jetty.websocket.common.WebSocketSession.onOpened(WebSocketSession.java:423)
      5. org.eclipse.jetty.io.AbstractConnection.onOpen(AbstractConnection.java:198)
      6. org.eclipse.jetty.websocket.common.io.AbstractWebSocketConnection.onOpen(AbstractWebSocketConnection.java:562)
      7. org.eclipse.jetty.io.AbstractEndPoint.upgrade(AbstractEndPoint.java:201)
      8. org.eclipse.jetty.server.HttpConnection.onCompleted(HttpConnection.java:369)
      9. org.eclipse.jetty.server.HttpChannel.onCompleted(HttpChannel.java:611)
      10. org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:442)
      11. org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:244)
      12. org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:273)
      13. org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:95)
      14. org.eclipse.jetty.io.SelectChannelEndPoint$2.run(SelectChannelEndPoint.java:93)
      14 frames
    6. org.eclipse.jetty
      ExecuteProduceConsume.run
      1. org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.produceAndRun(ExecuteProduceConsume.java:246)
      2. org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.run(ExecuteProduceConsume.java:156)
      2 frames
    7. Jetty
      QueuedThreadPool$3.run
      1. org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:654)
      2. org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:572)
      2 frames
    8. Java RT
      Thread.run
      1. java.lang.Thread.run(Thread.java:745)
      1 frame