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java.lang.NullPointerException at org.eclipse.jdt.internal.debug.ui.actions.ToggleBreakpointAdapter.getQualifiedName(ToggleBreakpointAdapter.java:444) at org.eclipse.jdt.internal.debug.ui.actions.ToggleBreakpointAdapter.toggleBreakpoints(ToggleBreakpointAdapter.java:1187) at org.eclipse.debug.ui.actions.ToggleBreakpointAction.run(ToggleBreakpointAction.java:101) at org.eclipse.ui.texteditor.AbstractRulerActionDelegate.run(AbstractRulerActionDelegate.java:103) at org.eclipse.ui.internal.handlers.ActionDelegateHandlerProxy.execute(ActionDelegateHandlerProxy.java:289) at org.eclipse.core.commands.Command.executeWithChecks(Command.java:476) at org.eclipse.core.commands.ParameterizedCommand.executeWithChecks(ParameterizedCommand.java:508) at org.eclipse.ui.actions.ContributedAction.runWithEvent(ContributedAction.java:185) at org.eclipse.ui.internal.actions.CommandAction.run(CommandAction.java:171) at org.eclipse.ui.texteditor.AbstractTextEditor$14.triggerAction(AbstractTextEditor.java:2902) at org.eclipse.ui.texteditor.AbstractTextEditor$14.mouseDoubleClick(AbstractTextEditor.java:2927) at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:183) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) at org.eclipse.swt.widgets.Display.sendEvent(Display.java:3697) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1314) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1337) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1322) at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:1136) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3557) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3215) at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2407) at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2371) at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2220) at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:500) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:493) 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:194) 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:367) 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:592) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:611) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:566) at org.eclipse.equinox.launcher.Main.run(Main.java:1363)
Do you have a test case you can attach to this bug to reproduce?
Sorry, I cannot reproduce this bug reliably. If it happens again, I will be more careful and try to explain the situation. Unfortunately I found this stacktrace in the error log the day after the actual problem happened. I can only remember the strange moment yesterday, when I tried to add / remove a breakpoint in the UI and nothing happened. Actually I had to restart Eclipse and afterwards in worked again.
*** This bug has been marked as a duplicate of bug 297248 ***
