Job fails when Remove Duplicates component follows an Oracle Input component

[alpeshk]

Job fails when Remove Duplicates component follows an Oracle Input component with the following exception -

java.lang.NullPointerException
at hydrograph.engine.core.helper.JAXBTraversal.getOrderedComponentsList(JAXBTraversal.java:119)
at hydrograph.engine.spark.flow.FlowBuilder.createAndConnect(FlowBuilder.scala:60)
at hydrograph.engine.spark.flow.FlowBuilder$$anonfun$buildAndExecuteFlows$1.apply(FlowBuilder.scala:41)
at hydrograph.engine.spark.flow.FlowBuilder$$anonfun$buildAndExecuteFlows$1.apply(FlowBuilder.scala:40)
at scala.collection.Iterator$class.foreach(Iterator.scala:893)
at scala.collection.AbstractIterator.foreach(Iterator.scala:1336)
at scala.collection.IterableLike$class.foreach(IterableLike.scala:72)
at scala.collection.AbstractIterable.foreach(Iterable.scala:54)
at hydrograph.engine.spark.flow.FlowBuilder.buildAndExecuteFlows(FlowBuilder.scala:40)
at hydrograph.engine.spark.flow.HydrographRuntime.execute(HydrographRuntime.scala:160)
at hydrograph.engine.commandline.utilities.HydrographExecution.finalExecute(HydrographExecution.java:97)
at hydrograph.engine.commandline.utilities.HydrographExecution.run(HydrographExecution.java:65)
at hydrograph.engine.commandline.utilities.HydrographService.executeGraph(HydrographService.java:50)
at hydrograph.server.execution.tracking.client.main.HydrographMain$1.run(HydrographMain.java:164)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
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)
2017-06-22 16:16:23.732 INFO main.HydrographMain: Getting exception from HydrographMain
2017-06-22 16:16:23.732 INFO main.HydrographMain: HydrographMain releasing resources
Exception in thread "main" java.lang.RuntimeException: java.util.concurrent.ExecutionException: java.lang.RuntimeException: java.lang.NullPointerException
at hydrograph.server.execution.tracking.client.main.HydrographMain.main(HydrographMain.java:135)
Caused by: java.util.concurrent.ExecutionException: java.lang.RuntimeException: java.lang.NullPointerException
at java.util.concurrent.FutureTask.report(FutureTask.java:122)
at java.util.concurrent.FutureTask.get(FutureTask.java:192)
at hydrograph.server.execution.tracking.client.main.HydrographMain.main(HydrographMain.java:131)
Caused by: java.lang.RuntimeException: java.lang.NullPointerException
at hydrograph.server.execution.tracking.client.main.HydrographMain$1.run(HydrographMain.java:178)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
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)
Caused by: java.lang.NullPointerException
at hydrograph.engine.core.helper.JAXBTraversal.getOrderedComponentsList(JAXBTraversal.java:119)
at hydrograph.engine.spark.flow.FlowBuilder.createAndConnect(FlowBuilder.scala:60)
at hydrograph.engine.spark.flow.FlowBuilder$$anonfun$buildAndExecuteFlows$1.apply(FlowBuilder.scala:41)
at hydrograph.engine.spark.flow.FlowBuilder$$anonfun$buildAndExecuteFlows$1.apply(FlowBuilder.scala:40)
at scala.collection.Iterator$class.foreach(Iterator.scala:893)
at scala.collection.AbstractIterator.foreach(Iterator.scala:1336)
at scala.collection.IterableLike$class.foreach(IterableLike.scala:72)
at scala.collection.AbstractIterable.foreach(Iterable.scala:54)
at hydrograph.engine.spark.flow.FlowBuilder.buildAndExecuteFlows(FlowBuilder.scala:40)
at hydrograph.engine.spark.flow.HydrographRuntime.execute(HydrographRuntime.scala:160)
at hydrograph.engine.commandline.utilities.HydrographExecution.finalExecute(HydrographExecution.java:97)
at hydrograph.engine.commandline.utilities.HydrographExecution.run(HydrographExecution.java:65)
at hydrograph.engine.commandline.utilities.HydrographService.executeGraph(HydrographService.java:50)
at hydrograph.server.execution.tracking.client.main.HydrographMain$1.run(HydrographMain.java:164)
... 7 more