Hi,
I'm trying to use m2eclispe with the mahout project. I'm getting a
"Cannot parse lifecycle mapping metadata..." error. When I try to open
project > properties > maven > "lifecycle mapping" to fix the issue I
get a null pointer exception. Screen shot and stack trace from the
eclipse error log are show below.
Any suggestions?
http://beavercreekconsulting.com/img/eclipse-mahout-m2eclipse-trouble.png
Message: Problems occurred when invoking code from plug-in:
"org.eclipse.jface".
java.lang.NullPointerException
at
org.eclipse.m2e.core.ui.internal.preferences.LifecycleMappingsViewer.setTarget(LifecycleMappingsViewer.java:553)
at
org.eclipse.m2e.core.ui.internal.preferences.LifecycleMappingPropertyPage.setElement(LifecycleMappingPropertyPage.java:45)
at
org.eclipse.ui.internal.dialogs.RegistryPageContributor.createPage(RegistryPageContributor.java:166)
at
org.eclipse.ui.internal.dialogs.PropertyPageNode.createPage(PropertyPageNode.java:56)
at
org.eclipse.jface.preference.PreferenceDialog.createPage(PreferenceDialog.java:1340)
at
org.eclipse.ui.internal.dialogs.FilteredPreferenceDialog.createPage(FilteredPreferenceDialog.java:377)
at
org.eclipse.jface.preference.PreferenceDialog.showPage(PreferenceDialog.java:1231)
at
org.eclipse.ui.internal.dialogs.FilteredPreferenceDialog.showPage(FilteredPreferenceDialog.java:675)
at
org.eclipse.jface.preference.PreferenceDialog$10.run(PreferenceDialog.java:709)
at
org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
at
org.eclipse.jface.preference.PreferenceDialog$9.selectionChanged(PreferenceDialog.java:705)
at
org.eclipse.jface.viewers.StructuredViewer$3.run(StructuredViewer.java:888)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:49)
at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:175)
at
org.eclipse.jface.viewers.StructuredViewer.firePostSelectionChanged(StructuredViewer.java:886)
at
org.eclipse.jface.viewers.StructuredViewer.handlePostSelect(StructuredViewer.java:1226)
at
org.eclipse.jface.viewers.StructuredViewer$5.widgetSelected(StructuredViewer.java:1251)
at
org.eclipse.jface.util.OpenStrategy.firePostSelectionEvent(OpenStrategy.java:262)
at org.eclipse.jface.util.OpenStrategy.access$5(OpenStrategy.java:256)
at org.eclipse.jface.util.OpenStrategy$3.run(OpenStrategy.java:433)
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
at
org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:135)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:3529)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3182)
at org.eclipse.jface.window.Window.runEventLoop(Window.java:825)
at org.eclipse.jface.window.Window.open(Window.java:801)
at
org.eclipse.ui.dialogs.PropertyDialogAction.run(PropertyDialogAction.java:158)
at org.eclipse.jface.action.Action.runWithEvent(Action.java:498)
at
org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:584)
at
org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:501)
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:1276)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3554)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3179)
at
org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:1029)
at
org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at
org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:923)
at
org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:86)
at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:588)
at
org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at
org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:543)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
at
org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:124)
at
org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
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:353)
at
org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:180)
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:629)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:584)
at org.eclipse.equinox.launcher.Main.run(Main.java:1438)
at org.eclipse.equinox.launcher.Main.main(Main.java:1414)
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