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Steps to recreate: 1. using a web project, selected (web content) directory 2. from menu pulldown selected Refactor ->Rename 3. typed in web content2 and rename was successful 4. from menu pulldown selected Undo rename Received message internal error in undo manager. Log shows: java.lang.NullPointerException at org.eclipse.jdt.internal.ui.refactoring.actions.UndoManagerAction.run(UndoManage rAction.java:115) at org.eclipse.ui.internal.PluginAction.runWithEvent(PluginAction.java:202) at org.eclipse.ui.internal.WWinPluginAction.runWithEvent(WWinPluginAction.java:162) at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionCont ributionItem.java:407) at org.eclipse.jface.action.ActionContributionItem.handleWidgetEvent(ActionContribu tionItem.java:361) at org.eclipse.jface.action.ActionContributionItem.access$0(ActionContributionItem. java:352) at org.eclipse.jface.action.ActionContributionItem$ActionListener.handleEvent(Actio nContributionItem.java:47) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java(Compiled Code)) at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:637) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java(Compiled Code)) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java(Compiled Code)) at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java(Compiled Code)) at org.eclipse.ui.internal.Workbench.run(Workbench.java:848) at org.eclipse.core.internal.boot.InternalBootLoader.run(InternalBootLoader.java:77 7) at org.eclipse.core.boot.BootLoader.run(BootLoader.java:319) at java.lang.reflect.Method.invoke(Native Method) at org.eclipse.core.launcher.Main.basicRun(Main.java:190) at org.eclipse.core.launcher.Main.run(Main.java:549) at org.eclipse.core.launcher.Main.main(Main.java:390)
which build are you using? the 'version' field indicates 1.0 - is it really 1.0?
Line 115 now contains a comment, since this part got recoded since 1.0.
My apologies, error reported in in M5 build (jdt 2.0). Thanks, Kristine
From the old code the problem seems to be that the preflight status is null when checking if it has a fatal error.
The code has changed since M5. Fixed by putting a guard in front of fPreflightStatus.hasError(). In the new code there is only one case were the preflight status can be null: if a previous error has occured. If this is the case then the error is catched by the try/catch block right in front of the line if (fPreflightStatus.hasError ()); Waiting for WSAD driver to ensure that this fixes the problem
The new code fixes the NPE but it reveals another problem. Opened bug 16226 for new problem.
