Six Stars

Null pointer exception - Talend 7.0

Hello,

 

We have recently migrated to Talend 7.0 from version 5.4. We have around 50 jobs and except 3 all others are working good. For those 3 jobs, we have a strange error. We see a null pointer exception when we open the job, doesn't brief anything else, and then if we ignore the exception, its all good. We can execute the job within the studio, it works as designed. When we try to build the job, we again get the null pointer exception with more details, but unable to understand and fix the issue, any pointers would be really helpful.

 

Exception when we open the job and when we build. I have copied the complete error description when we build below.

talendJobOpen.PNGtalendJobbuild.PNGorg.talend.commons.exception.PersistenceException: java.lang.NullPointerException
at org.talend.repository.ui.wizards.exportjob.scriptsmanager.BuildJobManager.buildJob(BuildJobManager.java:252)
at org.talend.repository.ui.wizards.exportjob.scriptsmanager.BuildJobManager.buildJob(BuildJobManager.java:177)
at org.talend.repository.ui.wizards.exportjob.scriptsmanager.BuildJobManager.buildJobs(BuildJobManager.java:117)
at org.talend.repository.ui.wizards.exportjob.JobScriptsExportWizardPage.buildJobWithMaven(JobScriptsExportWizardPage.java:1463)
at org.talend.repository.ui.wizards.exportjob.JobScriptsExportWizardPage$8.run(JobScriptsExportWizardPage.java:1366)
at org.eclipse.jface.operation.ModalContext.runInCurrentThread(ModalContext.java:466)
at org.eclipse.jface.operation.ModalContext.run(ModalContext.java:374)
at org.eclipse.jface.wizard.WizardDialog.run(WizardDialog.java:1059)
at org.talend.repository.ui.wizards.exportjob.JobScriptsExportWizardPage.finish(JobScriptsExportWizardPage.java:1371)
at org.talend.repository.ui.wizards.exportjob.JavaJobScriptsExportWSWizardPage.finish(JavaJobScriptsExportWSWizardPage.java:1268)
at org.talend.repository.ui.wizards.exportjob.JobScriptsExportWizard.performFinish(JobScriptsExportWizard.java:126)
at org.eclipse.jface.wizard.WizardDialog.finishPressed(WizardDialog.java:853)
at org.eclipse.jface.wizard.WizardDialog.buttonPressed(WizardDialog.java:438)
at org.eclipse.jface.dialogs.Dialog$2.widgetSelected(Dialog.java:619)
at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:248)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4353)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1061)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4172)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3761)
at org.eclipse.jface.window.Window.runEventLoop(Window.java:832)
at org.eclipse.jface.window.Window.open(Window.java:808)
at org.talend.repository.ui.actions.ExportJobScriptAction.doRun(ExportJobScriptAction.java:122)
at org.talend.repository.ui.actions.AContextualAction$2.run(AContextualAction.java:630)
at org.talend.repository.RepositoryWorkUnit.executeRun(RepositoryWorkUnit.java:99)
at org.talend.core.repository.model.AbstractRepositoryFactory.executeRepositoryWorkUnit(AbstractRepositoryFactory.java:258)
at org.talend.repository.localprovider.model.LocalRepositoryFactory.executeRepositoryWorkUnit(LocalRepositoryFactory.java:3420)
at org.talend.core.repository.model.ProxyRepositoryFactory.executeRepositoryWorkUnit(ProxyRepositoryFactory.java:2247)
at org.talend.repository.ui.actions.AContextualAction.run(AContextualAction.java:639)
at org.eclipse.jface.action.Action.runWithEvent(Action.java:519)
at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:595)
at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:511)
at org.eclipse.jface.action.ActionContributionItem$5.handleEvent(ActionContributionItem.java:420)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4353)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1061)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4172)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3761)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:1151)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1032)
at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:148)
at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:636)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:579)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150)
at org.talend.rcp.intro.Application.start(Application.java:265)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:380)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:235)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:648)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:603)
at org.eclipse.equinox.launcher.Main.run(Main.java:1465)
Caused by: java.lang.NullPointerException
at org.talend.designer.mapper.utils.problems.ProblemsAnalyser.checkLookupTablesKeyProblems(ProblemsAnalyser.java:176)
at org.talend.designer.mapper.utils.problems.ProblemsAnalyser.checkProblems(ProblemsAnalyser.java:70)
at org.talend.designer.mapper.MapperComponent.getProblems(MapperComponent.java:642)
at org.talend.designer.core.ui.editor.nodes.Node.checkNode(Node.java:4244)
at org.talend.designer.core.ui.editor.process.Process.checkProblems(Process.java:3453)
at org.talend.designer.core.ui.editor.process.Process.checkProcess(Process.java:3444)
at org.talend.designer.runprocess.ProcessorUtilities.generateJobInfo(ProcessorUtilities.java:1166)
at org.talend.designer.runprocess.ProcessorUtilities.generateCode(ProcessorUtilities.java:1031)
at org.talend.designer.runprocess.ProcessorUtilities.generateCode(ProcessorUtilities.java:904)
at org.talend.designer.runprocess.ProcessorUtilities.generateCode(ProcessorUtilities.java:1578)
at org.talend.repository.ui.wizards.exportjob.handler.BuildJobHandler.generateJobFiles(BuildJobHandler.java:156)
at org.talend.repository.ui.wizards.exportjob.handler.AbstractBuildJobHandler.prepare(AbstractBuildJobHandler.java:350)
at org.talend.repository.ui.wizards.exportjob.scriptsmanager.BuildJobManager$1.run(BuildJobManager.java:219)
at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:2313)
at org.talend.repository.ui.wizards.exportjob.scriptsmanager.BuildJobManager.buildJob(BuildJobManager.java:246)
... 58 more

1 ACCEPTED SOLUTION

Accepted Solutions
Seven Stars

Re: Null pointer exception - Talend 7.0

Hi,

 

I'd suggest duplicating the job - then in the duplicate version, disable the lower half of the components, save and re-open, see if you get the error.

 

Basically try and home in on which component is causing the problem using a pseudo-binary search. The jump between 5.4 to 7 is pretty huge, so a component in use probably now has extra properties that need to be completed.

 

Thanks

 

David

Regards

David

Don't forget to give Kudos when an answer is helpful or the solution.
2 REPLIES
Seven Stars

Re: Null pointer exception - Talend 7.0

Hi,

 

I'd suggest duplicating the job - then in the duplicate version, disable the lower half of the components, save and re-open, see if you get the error.

 

Basically try and home in on which component is causing the problem using a pseudo-binary search. The jump between 5.4 to 7 is pretty huge, so a component in use probably now has extra properties that need to be completed.

 

Thanks

 

David

Regards

David

Don't forget to give Kudos when an answer is helpful or the solution.
Six Stars

Re: Null pointer exception - Talend 7.0

Thanks David,

 

We did as you advised and found that there were certain links to tmap had no columns and hence a null input. we sorted the issue. Thanks !