java.lang.NullPointerException: This exception has no message.

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via GitHub by rminchev1
, 1 year ago
This exception has no message.
java.lang.NullPointerException:
at net.hawkengine.ws.SessionPool.lambda$sendToUserSessions$0(SessionPool.java:73)
at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:174)
at java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1374)
at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481)
at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471)
at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708)
at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:499)
at net.hawkengine.ws.SessionPool.sendToUserSessions(SessionPool.java:74)
at net.hawkengine.ws.WsEndpoint.onWebSocketConnect(WsEndpoint.java:100)
at org.eclipse.jetty.websocket.common.events.JettyListenerEventDriver.onConnect(JettyListenerEventDriver.java:106)
at org.eclipse.jetty.websocket.common.events.AbstractEventDriver.openSession(AbstractEventDriver.java:229)
at org.eclipse.jetty.websocket.common.WebSocketSession.open(WebSocketSession.java:489)
at org.eclipse.jetty.websocket.common.WebSocketSession.onOpened(WebSocketSession.java:423)
at org.eclipse.jetty.io.AbstractConnection.onOpen(AbstractConnection.java:198)
at org.eclipse.jetty.websocket.common.io.AbstractWebSocketConnection.onOpen(AbstractWebSocketConnection.java:562)
at org.eclipse.jetty.io.AbstractEndPoint.upgrade(AbstractEndPoint.java:201)
at org.eclipse.jetty.server.HttpConnection.onCompleted(HttpConnection.java:369)
at org.eclipse.jetty.server.HttpChannel.onCompleted(HttpChannel.java:611)
at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:442)
at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:244)
at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:273)
at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:95)
at org.eclipse.jetty.io.SelectChannelEndPoint$2.run(SelectChannelEndPoint.java:93)
at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.produceAndRun(ExecuteProduceConsume.java:246)
at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.run(ExecuteProduceConsume.java:156)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:654)
at java.lang.Thread.run(Thread.java:745)

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