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java.lang.NullPointerException: 	at org.eclipse.debug.ui.actions.RulerBreakpointAction.getBreakpoint(RulerBreakpointAction.java:72)	at org.eclipse.jdt.internal.debug.ui.actions.JavaBreakpointPropertiesRulerAction.update(JavaBreakpointPropertiesRulerAction.java:72)	at org.eclipse.ui.texteditor.AbstractRulerActionDelegate.update(AbstractRulerActionDelegate.java:132)	at org.eclipse.ui.texteditor.AbstractRulerActionDelegate.setActiveEditor(AbstractRulerActionDelegate.java:89)	at org.eclipse.ui.internal.EditorPluginAction.editorChanged(EditorPluginAction.java:77)	at org.eclipse.ui.internal.EditorPluginAction.(EditorPluginAction.java:34)	at org.eclipse.ui.internal.ActionDescriptor.createAction(ActionDescriptor.java:262)	at org.eclipse.ui.internal.ActionDescriptor.(ActionDescriptor.java:176)	at org.eclipse.ui.internal.ViewerActionBuilder.createActionDescriptor(ViewerActionBuilder.java:54)	at org.eclipse.ui.internal.PluginActionBuilder.readElement(PluginActionBuilder.java:162)	at org.eclipse.ui.internal.ViewerActionBuilder.readElement(ViewerActionBuilder.java:91)	at org.eclipse.ui.internal.registry.RegistryReader.readElements(RegistryReader.java:145)	at org.eclipse.ui.internal.registry.RegistryReader.readElementChildren(RegistryReader.java:134)	at org.eclipse.ui.internal.PluginActionBuilder.readElement(PluginActionBuilder.java:145)	at org.eclipse.ui.internal.ViewerActionBuilder.readElement(ViewerActionBuilder.java:91)	at org.eclipse.ui.internal.registry.RegistryReader.readElements(RegistryReader.java:145)	at org.eclipse.ui.internal.registry.RegistryReader.readExtension(RegistryReader.java:156)	at org.eclipse.ui.internal.registry.RegistryReader.readRegistry(RegistryReader.java:177)	at org.eclipse.ui.internal.PluginActionBuilder.readContributions(PluginActionBuilder.java:115)	at org.eclipse.ui.internal.ViewerActionBuilder.readViewerContributions(ViewerActionBuilder.java:109)	at org.eclipse.ui.internal.PopupMenuExtender.readStaticActionsFor(PopupMenuExtender.java:541)	at org.eclipse.ui.internal.PopupMenuExtender.addMenuId(PopupMenuExtender.java:237)	at org.eclipse.ui.internal.PopupMenuExtender.(PopupMenuExtender.java:157)	at org.eclipse.ui.internal.PartSite.registerContextMenu(PartSite.java:131)	at org.eclipse.ui.internal.EditorSite.registerContextMenu(EditorSite.java:160)	at org.eclipse.ui.texteditor.AbstractTextEditor.createPartControl(AbstractTextEditor.java:3551)	at org.eclipse.ui.texteditor.StatusTextEditor.createPartControl(StatusTextEditor.java:54)	at org.eclipse.ui.texteditor.AbstractDecoratedTextEditor.createPartControl(AbstractDecoratedTextEditor.java:447)	at org.eclipse.jdt.internal.ui.javaeditor.JavaEditor.createPartControl(JavaEditor.java:3119)	at org.eclipse.jdt.internal.ui.javaeditor.CompilationUnitEditor.createPartControl(CompilationUnitEditor.java:1505)	at org.codehaus.groovy.eclipse.editor.GroovyEditor.createPartControl(GroovyEditor.java:1006)	at org.eclipse.ui.internal.e4.compatibility.CompatibilityPart.createPartControl(CompatibilityPart.java:140)	at org.eclipse.ui.internal.e4.compatibility.CompatibilityEditor.createPartControl(CompatibilityEditor.java:99)	at org.eclipse.ui.internal.e4.compatibility.CompatibilityPart.create(CompatibilityPart.java:321)	at sun.reflect.GeneratedMethodAccessor198.invoke(Unknown Source)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:606)	at org.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:55)	at org.eclipse.e4.core.internal.di.InjectorImpl.processAnnotated(InjectorImpl.java:888)	at org.eclipse.e4.core.internal.di.InjectorImpl.processAnnotated(InjectorImpl.java:869)	at org.eclipse.e4.core.internal.di.InjectorImpl.inject(InjectorImpl.java:120)	at org.eclipse.e4.core.internal.di.InjectorImpl.internalMake(InjectorImpl.java:337)	at org.eclipse.e4.core.internal.di.InjectorImpl.make(InjectorImpl.java:258)	at org.eclipse.e4.core.contexts.ContextInjectionFactory.make(ContextInjectionFactory.java:162)	at org.eclipse.e4.ui.internal.workbench.ReflectionContributionFactory.createFromBundle(ReflectionContributionFactory.java:104)	at org.eclipse.e4.ui.internal.workbench.ReflectionContributionFactory.doCreate(ReflectionContributionFactory.java:73)	at org.eclipse.e4.ui.internal.workbench.ReflectionContributionFactory.create(ReflectionContributionFactory.java:55)	at org.eclipse.e4.ui.workbench.renderers.swt.ContributedPartRenderer.createWidget(ContributedPartRenderer.java:127)	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.createWidget(PartRenderingEngine.java:983)	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeCreateGui(PartRenderingEngine.java:662)	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeCreateGui(PartRenderingEngine.java:766)	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.access$2(PartRenderingEngine.java:737)	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$7.run(PartRenderingEngine.java:731)	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.createGui(PartRenderingEngine.java:715)	at org.eclipse.e4.ui.internal.workbench.PartServiceImpl$1.handleEvent(PartServiceImpl.java:92)	at org.eclipse.e4.ui.services.internal.events.UIEventHandler$1.run(UIEventHandler.java:40)	at org.eclipse.swt.widgets.Synchronizer.syncExec(Synchronizer.java:187)	at org.eclipse.ui.internal.UISynchronizer.syncExec(UISynchronizer.java:156)	at org.eclipse.swt.widgets.Display.syncExec(Display.java:4734)	at org.eclipse.e4.ui.internal.workbench.swt.E4Application$1.syncExec(E4Application.java:218)	at org.eclipse.e4.ui.services.internal.events.UIEventHandler.handleEvent(UIEventHandler.java:36)	at org.eclipse.equinox.internal.event.EventHandlerWrapper.handleEvent(EventHandlerWrapper.java:197)	at org.eclipse.equinox.internal.event.EventHandlerTracker.dispatchEvent(EventHandlerTracker.java:197)	at org.eclipse.equinox.internal.event.EventHandlerTracker.dispatchEvent(EventHandlerTracker.java:1)	at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:230)	at org.eclipse.osgi.framework.eventmgr.ListenerQueue.dispatchEventSynchronous(ListenerQueue.java:148)	at org.eclipse.equinox.internal.event.EventAdminImpl.dispatchEvent(EventAdminImpl.java:135)	at org.eclipse.equinox.internal.event.EventAdminImpl.sendEvent(EventAdminImpl.java:78)	at org.eclipse.equinox.internal.event.EventComponent.sendEvent(EventComponent.java:39)	at org.eclipse.e4.ui.services.internal.events.EventBroker.send(EventBroker.java:81)	at org.eclipse.e4.ui.internal.workbench.UIEventPublisher.notifyChanged(UIEventPublisher.java:59)	at org.eclipse.emf.common.notify.impl.BasicNotifierImpl.eNotify(BasicNotifierImpl.java:374)	at org.eclipse.e4.ui.model.application.ui.impl.ElementContainerImpl.setSelectedElement(ElementContainerImpl.java:171)	at org.eclipse.e4.ui.internal.workbench.ModelServiceImpl.showElementInWindow(ModelServiceImpl.java:488)	at org.eclipse.e4.ui.internal.workbench.ModelServiceImpl.bringToTop(ModelServiceImpl.java:454)	at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.delegateBringToTop(PartServiceImpl.java:692)	at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.bringToTop(PartServiceImpl.java:385)	at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.showPart(PartServiceImpl.java:1126)	at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditor(WorkbenchPage.java:3182)	at org.eclipse.ui.internal.WorkbenchPage.access$23(WorkbenchPage.java:3104)	at org.eclipse.ui.internal.WorkbenchPage$9.run(WorkbenchPage.java:3086)	at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)	at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:3081)	at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:3045)	at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:3035)	at org.eclipse.jdt.internal.ui.javaeditor.EditorUtility.openInEditor(EditorUtility.java:373)	at org.eclipse.jdt.internal.ui.javaeditor.EditorUtility.openInEditor(EditorUtility.java:179)	at org.eclipse.jdt.ui.actions.OpenAction.run(OpenAction.java:268)	at org.eclipse.jdt.ui.actions.OpenAction.run(OpenAction.java:233)	at org.eclipse.jdt.ui.actions.SelectionDispatchAction.dispatchRun(SelectionDispatchAction.java:275)	at org.eclipse.jdt.ui.actions.SelectionDispatchAction.run(SelectionDispatchAction.java:251)	at org.eclipse.jdt.internal.ui.navigator.OpenAndExpand.run(OpenAndExpand.java:50)	at org.eclipse.ui.actions.RetargetAction.run(RetargetAction.java:229)	at org.eclipse.ui.navigator.CommonNavigatorManager$3.open(CommonNavigatorManager.java:185)	at org.eclipse.ui.OpenAndLinkWithEditorHelper$InternalListener.open(OpenAndLinkWithEditorHelper.java:48)	at org.eclipse.jface.viewers.StructuredViewer$2.run(StructuredViewer.java:853)	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)	at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:50)	at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:178)	at org.eclipse.jface.viewers.StructuredViewer.fireOpen(StructuredViewer.java:850)	at org.eclipse.jface.viewers.StructuredViewer.handleOpen(StructuredViewer.java:1142)	at org.eclipse.ui.navigator.CommonViewer.handleOpen(CommonViewer.java:462)	at org.eclipse.jface.viewers.StructuredViewer$6.handleOpen(StructuredViewer.java:1249)	at org.eclipse.jface.util.OpenStrategy.fireOpenEvent(OpenStrategy.java:278)	at org.eclipse.jface.util.OpenStrategy.access$2(OpenStrategy.java:272)	at org.eclipse.jface.util.OpenStrategy$1.handleEvent(OpenStrategy.java:313)	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)	at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4353)	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1061)	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4172)	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3761)	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:1151)	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1032)	at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:148)	at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:636)	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)	at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:579)	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150)	at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:135)	at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134)	at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:382)	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:236)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:606)	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:648)	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:603)	at org.eclipse.equinox.launcher.Main.run(Main.java:1465)