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Hi, While im working on Database connector module to import data from external DB in to mendix DB, I got the following error.     An error has occurred while handling the request. [User 'sysadmin@tiruven.in' with session id 'af1bf367-0c22-4ce4-b695-a60fdd7ea20f' and roles 'User, KPIAdministrator, ModelValidationDataAdministrator, SystemAdministrator, ModelManager']   com.mendix.modules.microflowengine.MicroflowException: com.mendix.core.CoreRuntimeException: com.mendix.systemwideinterfaces.MendixRuntimeException: java.lang.NullPointerException     at DatabaseConnector.MF_2 (JavaAction : 'Execute query') Advanced stacktrace:     at com.mendix.modules.microflowengine.MicroflowUtil.processException(MicroflowUtil.java:143) Caused by: com.mendix.core.CoreException: com.mendix.core.CoreRuntimeException: com.mendix.systemwideinterfaces.MendixRuntimeException: java.lang.NullPointerException     at com.mendix.core.component.InternalCore.execute(InternalCore.java:391) Caused by: com.mendix.core.CoreRuntimeException: com.mendix.systemwideinterfaces.MendixRuntimeException: java.lang.NullPointerException     at com.mendix.core.actionmanagement.ActionManager.executeSync(ActionManager.java:178) Caused by: com.mendix.systemwideinterfaces.MendixRuntimeException: java.lang.NullPointerException     at com.mendix.util.classloading.Runner.doRunUsingClassLoaderOf(Runner.java:36) Caused by: java.lang.NullPointerException: null     at databaseconnector.impl.JdbcConnector.lambda$null$1(JdbcConnector.java:51)     at java.util.HashMap.forEach(HashMap.java:1280)     at databaseconnector.impl.JdbcConnector.lambda$executeQuery$2(JdbcConnector.java:65)     at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193)     at java.util.ArrayList$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 databaseconnector.actions.ExecuteQuery.executeAction(ExecuteQuery.java:83)     at databaseconnector.actions.ExecuteQuery.executeAction(ExecuteQuery.java:58)     at com.mendix.systemwideinterfaces.core.UserAction.execute(UserAction.java:49)     at com.mendix.core.actionmanagement.CoreAction.doCall(CoreAction.java:260)     at com.mendix.core.actionmanagement.CoreAction.call(CoreAction.java:248)     at com.mendix.core.actionmanagement.ActionManager$1.execute(ActionManager.java:168)     at com.mendix.util.classloading.Runner.doRunUsingClassLoaderOf(Runner.java:32)     at com.mendix.core.actionmanagement.ActionManager.executeSync(ActionManager.java:174)     at com.mendix.core.component.InternalCore.execute(InternalCore.java:383)     at com.mendix.modules.microflowengine.actions.actioncall.JavaAction.execute(JavaAction.scala:52)     at com.mendix.modules.microflowengine.microflow.impl.MicroflowObject.execute(MicroflowObject.java:47)     at com.mendix.modules.microflowengine.microflow.impl.MicroflowImpl.executeAfterBreakingIfNecessary(MicroflowImpl.java:192)     at com.mendix.modules.microflowengine.microflow.impl.MicroflowImpl.executeAction(MicroflowImpl.java:149)     at com.mendix.systemwideinterfaces.core.UserAction.execute(UserAction.java:49)     at com.mendix.core.actionmanagement.CoreAction.doCall(CoreAction.java:260)     at com.mendix.core.actionmanagement.CoreAction.call(CoreAction.java:248)     at com.mendix.core.actionmanagement.ActionManager$1.executde(ActionManager.java:168)     at com.mendix.util.classloading.Runner.doRunUsingClassLoaderOf(Runner.java:32)     at com.mendix.core.actionmanagement.ActionManager.executeSync(ActionManager.java:174)     at com.mendix.core.component.InternalCore.execute(InternalCore.java:383)     at com.mendix.webui.actions.client.ExecuteAction.execute(ExecuteAction.java:135)     at com.mendix.webui.requesthandling.ClientRequestHandler$$anonfun$handleRequest$1.apply$mcV$sp(ClientRequestHandler.scala:317)     at com.mendix.webui.requesthandling.ClientRequestHandler$$anonfun$handleRequest$1.apply(ClientRequestHandler.scala:312)     at com.mendix.webui.requesthandling.ClientRequestHandler$$anonfun$handleRequest$1.apply(ClientRequestHandler.scala:312)     at com.mendix.core.session.Worker$$anonfun$receive$3$$anonfun$2$$anon$1.execute(ActionDispatching.scala:144)     at com.mendix.util.classloading.Runner.doRunUsingClassLoaderOf(Runner.java:32)     at com.mendix.core.session.Worker$$anonfun$receive$3$$anonfun$2.apply(ActionDispatching.scala:146)     at scala.util.Try$.apply(Try.scala:192)     at com.mendix.core.session.Worker$$anonfun$receive$3.applyOrElse(ActionDispatching.scala:140)     at akka.actor.Actor$class.aroundReceive(Actor.scala:465)     at com.mendix.core.session.Worker.aroundReceive(ActionDispatching.scala:136)     at akka.actor.ActorCell.receiveMessage(ActorCell.scala:516)     at akka.actor.ActorCell.invoke(ActorCell.scala:487)     at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:238)     at akka.dispatch.Mailbox.run(Mailbox.scala:220)     at akka.dispatch.ForkJoinExecutorConfigurator$AkkaForkJoinTask.exec(AbstractDispatcher.scala:393)     at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260)     at scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339)     at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)     at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)  

asked 2017-02-23

1 answers