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I saw this in my log after previewing, but canceling the "Move Member Type to New File" refactoring. Could not reproduce. I didn't notice any consequences other than the error log entry itself. Error Jun 10, 2004 10:04:58.865 java.lang.NullPointerException java.lang.NullPointerException at org.eclipse.ui.internal.progress.AnimationManager$1.runInUIThread(AnimationManager.java:70) at org.eclipse.ui.progress.UIJob$1.run(UIJob.java:87) at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35) at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:106) at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:2693) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2385) at org.eclipse.jface.window.Window.runEventLoop(Window.java:668) at org.eclipse.jface.window.Window.open(Window.java:648) at org.eclipse.ltk.ui.refactoring.RefactoringWizardOpenOperation.run(RefactoringWizardOpenOperation.java:121) at org.eclipse.jdt.internal.ui.refactoring.actions.RefactoringStarter.activate(RefactoringStarter.java:40) at org.eclipse.jdt.ui.actions.ConvertNestedToTopAction.startRefactoring(ConvertNestedToTopAction.java:210) at org.eclipse.jdt.ui.actions.ConvertNestedToTopAction.run(ConvertNestedToTopAction.java:166) at org.eclipse.jdt.ui.actions.SelectionDispatchAction.dispatchRun(SelectionDispatchAction.java:216) at org.eclipse.jdt.ui.actions.SelectionDispatchAction.run(SelectionDispatchAction.java:188) at org.eclipse.jface.action.Action.runWithEvent(Action.java:881) at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:915) at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:866) at org.eclipse.jface.action.ActionContributionItem$7.handleEvent(ActionContributionItem.java:785) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:82) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:796) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:2716) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2382) at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:1363) at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:1334) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:253) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:141) at org.eclipse.ui.internal.ide.IDEApplication.run(IDEApplication.java:96) at org.eclipse.core.internal.runtime.PlatformActivator$1.run(PlatformActivator.java:334) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:273) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:128) 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.basicRun(Main.java:185) at org.eclipse.core.launcher.Main.run(Main.java:638) at org.eclipse.core.launcher.Main.main(Main.java:622)
Which version of 3.0 were you using?
This was in 3.0RC1. Version: 3.0.0 Build id: 200405290105
*** This bug has been marked as a duplicate of 65415 ***