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What steps will reproduce the problem? 1. Trying to rename (refactor) any Java element -- Error Details -- Date: Wed Oct 27 22:17:02 CEST 2010 Message: Unhandled event loop exception Severity: Error Product: Eclipse 1.3.1.20100913-1228 (org.eclipse.epp.package.java.product) Plugin: org.eclipse.ui Session Data: eclipse.buildId=M20100909-0800 java.version=1.6.0_22 java.vendor=Sun Microsystems Inc. BootLoader constants: OS=linux, ARCH=x86, WS=gtk, NL=en_US Framework arguments: -product org.eclipse.epp.package.java.product Command-line arguments: -os linux -ws gtk -arch x86 -product org.eclipse.epp.package.java.product -clean Exception Stack Trace: java.lang.NullPointerException at org.eclipse.jdt.internal.ui.refactoring.actions.RenameJavaElementAction.run_aroundBody1$advice(RenameJavaElementAction.java:41) at org.eclipse.jdt.internal.ui.refactoring.actions.RenameJavaElementAction.run(RenameJavaElementAction.java:1) at org.eclipse.jdt.internal.ui.refactoring.actions.RenameJavaElementAction.run(RenameJavaElementAction.java:101) at org.eclipse.jdt.ui.actions.RenameAction.run(RenameAction.java:108) at org.eclipse.jdt.ui.actions.SelectionDispatchAction.dispatchRun(SelectionDispatchAction.java:274) at org.eclipse.jdt.ui.actions.SelectionDispatchAction.run(SelectionDispatchAction.java:250) 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:1258) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3540) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3161) at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2640) at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2604) at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2438) at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:671) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:664) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:115) 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:369) 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:619) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:574) at org.eclipse.equinox.launcher.Main.run(Main.java:1407)
It happens with the Scala IDE plugin (using the version with GSoC additions).
*** This bug has been marked as a duplicate of bug 321829 ***
Please make sure you use the most recent development build of AJDT. This issue has been fixed there. Update site is here: http://download.eclipse.org/tools/ajdt/36/dev/update
*** Bug 328813 has been marked as a duplicate of this bug. ***