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

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via espertech.com by Unknown author, 1 year ago
This exception has no message.
java.lang.NullPointerException:
at com.espertech.esper.epl.expression.ExprPreviousNode.evaluate(ExprPreviousNode.java:166)
at com.espertech.esper.epl.expression.ExprEqualsNode.evaluate(ExprEqualsNode.java:121)
at com.espertech.esper.epl.expression.ExprAndNode.evaluate(ExprAndNode.java:58)
at com.espertech.esper.epl.core.ResultSetProcessorRowForAll.getSelectListEvents(ResultSetProcessorRowForAll.java:165)
at com.espertech.esper.epl.core.ResultSetProcessorRowForAll.processViewResult(ResultSetProcessorRowForAll.java:148)
at com.espertech.esper.epl.view.OutputProcessViewDirect.update(OutputProcessViewDirect.java:71)
at com.espertech.esper.view.ViewSupport.updateChildren(ViewSupport.java:115)
at com.espertech.esper.view.window.TimeWindowView.update(TimeWindowView.java:161)
at com.espertech.esper.view.ZeroDepthStream.insert(ZeroDepthStream.java:70)
at com.espertech.esper.view.stream.StreamFactorySvcImpl$2.matchFound(StreamFactorySvcImpl.java:166)
at com.espertech.esper.core.EPRuntimeImpl.processStatementFilterSingle(EPRuntimeImpl.java:1053)
at com.espertech.esper.core.EPRuntimeImpl.processMatches(EPRuntimeImpl.java:821)
at com.espertech.esper.core.EPRuntimeImpl.processThreadWorkQueueLatchedSpin(EPRuntimeImpl.java:721)
at com.espertech.esper.core.EPRuntimeImpl.processThreadWorkQueue(EPRuntimeImpl.java:677)
at com.espertech.esper.core.EPRuntimeImpl.processWrappedEvent(EPRuntimeImpl.java:425)
at com.espertech.esper.core.EPRuntimeImpl.sendEvent(EPRuntimeImpl.java:279)
at it.tilab.cep.TestClass.main(TestClass.java:111)

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