[jboss-user] [JBoss Eclipse IDE (users)] - NullPointerException when trying the create a new Pageflow

[rlhr]

In Eclipse 3.1 and also 3.2 (I installed this version after having getting this expection in 3.1), I get the following exceptions when creating a new pageflow for a Seam project: 

java.lang.NullPointerException
  | 	at org.jbpm.ui.pageflow.wizard.NewPageFlowWizardPage.getRootForEmbeddingProject(Unknown Source)
  | 	at org.jbpm.ui.pageflow.wizard.NewPageFlowWizardPage.initContainerName(Unknown Source)
  | 	at org.jbpm.ui.pageflow.wizard.NewPageFlowWizardPage.chooseContainer(Unknown Source)
  | 	at org.jbpm.ui.pageflow.wizard.NewPageFlowWizardPage.access$1(Unknown Source)
  | 	at org.jbpm.ui.pageflow.wizard.NewPageFlowWizardPage$2.widgetSelected(Unknown Source)
  | 	at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:90)
  | 	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:66)
  | 	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:928)
  | 	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3348)
  | 	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2968)
  | 	at org.eclipse.jface.window.Window.runEventLoop(Window.java:820)
  | 	at org.eclipse.jface.window.Window.open(Window.java:796)
  | 	at org.eclipse.ui.actions.NewWizardAction.run(NewWizardAction.java:181)
  | 	at org.eclipse.jface.action.Action.runWithEvent(Action.java:499)
  | 	at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:539)
  | 	at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:488)
  | 	at org.eclipse.jface.action.ActionContributionItem$5.handleEvent(ActionContributionItem.java:400)
  | 	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:66)
  | 	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:928)
  | 	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3348)
  | 	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2968)
  | 	at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:1914)
  | 	at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:1878)
  | 	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:419)
  | 	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
  | 	at org.eclipse.ui.internal.ide.IDEApplication.run(IDEApplication.java:95)
  | 	at org.eclipse.core.internal.runtime.PlatformActivator$1.run(PlatformActivator.java:78)
  | 	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:92)
  | 	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:68)
  | 	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:400)
  | 	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:177)
  | 	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.core.launcher.Main.invokeFramework(Main.java:336)
  | 	at org.eclipse.core.launcher.Main.basicRun(Main.java:280)
  | 	at org.eclipse.core.launcher.Main.run(Main.java:977)
  | 	at org.eclipse.core.launcher.Main.main(Main.java:952)
  | 

And also:

Unhandled event loop exception
  | (An exception stack trace is not available.)

Does anyone have an idea what is the cause and how to fix it?

Thanks

Richard

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