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via Apache's JIRA Issue Tracker by Pragya Mittal, 1 year ago
E1021: Coord Action Input Check Error: Unable to evaluate :${dataIn('inputData0', 'null')}#${dataIn('inputData', 'null')}:
java.lang.NullPointerException: 	at org.apache.oozie.extensions.OozieELExtensions.getDSElement(OozieELExtensions.java:124)	at org.apache.oozie.extensions.OozieELExtensions.ph3_dataIn(OozieELExtensions.java:74)	at sun.reflect.GeneratedMethodAccessor106.invoke(Unknown Source)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:497)	at org.apache.commons.el.FunctionInvocation.evaluate(FunctionInvocation.java:172)	at org.apache.commons.el.ExpressionString.evaluate(ExpressionString.java:114)	at org.apache.commons.el.ExpressionEvaluatorImpl.evaluate(ExpressionEvaluatorImpl.java:274)	at org.apache.commons.el.ExpressionEvaluatorImpl.evaluate(ExpressionEvaluatorImpl.java:190)	at org.apache.oozie.util.ELEvaluator.evaluate(ELEvaluator.java:204)	at org.apache.oozie.coord.CoordELFunctions.evalAndWrap(CoordELFunctions.java:714)	at org.apache.oozie.command.coord.CoordActionInputCheckXCommand.resolveTagContents(CoordActionInputCheckXCommand.java:398)	at org.apache.oozie.command.coord.CoordActionInputCheckXCommand.materializeDataProperties(CoordActionInputCheckXCommand.java:379)	at org.apache.oozie.command.coord.CoordActionInputCheckXCommand.resolveCoordConfiguration(CoordActionInputCheckXCommand.java:288)	at org.apache.oozie.command.coord.CoordActionInputCheckXCommand.execute(CoordActionInputCheckXCommand.java:230)	at org.apache.oozie.command.coord.CoordActionInputCheckXCommand.execute(CoordActionInputCheckXCommand.java:71)	at org.apache.oozie.command.XCommand.call(XCommand.java:286)	at org.apache.oozie.service.CallableQueueService$CallableWrapper.run(CallableQueueService.java:175)	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)	at java.lang.Thread.run(Thread.java:745)