Null pointer exception in Ganymede

ed.
2008-10-31
2013-04-29
  • ed.
    ed.
    2008-10-31

    Hello,

    I've just installed Green plugin on Eclipse Ganymede. I used the "update software" installation method => green version 3.1.0.RC1

    Now, I can create a new Diagram by using File > New > Others > etc..., it works fine.

    But, when I want to create a Diagram by right-clicking on a class and by choosing Green > Add to New Class Diagram, nothing happens. Eclipse log contains this new logs :

    !ENTRY org.eclipse.ui 4 0 2008-10-31 11:03:16.776
    !MESSAGE Unhandled event loop exception
    !STACK 0
    java.lang.NullPointerException
        at edu.buffalo.cse.green.action.OpenNewEditorAction.run(OpenNewEditorAction.java:66)
        at org.eclipse.ui.internal.PluginAction.runWithEvent(PluginAction.java:251)
        at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:583)
        at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:500)
        at org.eclipse.jface.action.ActionContributionItem$5.handleEvent(ActionContributionItem.java:411)
        at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
        at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1003)
        at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3823)
        at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3422)
        at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2382)
        at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2346)
        at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2198)
        at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:493)
        at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:288)
        at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:488)
        at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
        at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:113)
        at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:193)
        at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
        at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
        at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:386)
        at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:549)
        at org.eclipse.equinox.launcher.Main.basicRun(Main.java:504)
        at org.eclipse.equinox.launcher.Main.run(Main.java:1236)
        at org.eclipse.equinox.launcher.Main.main(Main.java:1212)

    Does anyone know how to resolve this issue ?

    Regards