[jbosstools-issues] [JBoss JIRA] (JBIDE-17366) NPE on server disconnect with JMX Navigator

NPE on server disconnect with JMX Navigator ------------------------------------------- Key: JBIDE-17366 URL: https://issues.jboss.org/browse/JBIDE-17366 Project: Tools (JBoss Tools) Issue Type: Bug Components: jmx Affects Versions: 4.2.0.Beta1 Reporter: Paul Leacu Assignee: Paul Leacu Fix For: 4.2.0.Beta3 Sadly this issue doesn't always happen. Some defensive code at the NPE site should take care of it. Occurs sporadically on Disconnect from a specifically attached JMX server !ENTRY org.eclipse.e4.ui.workbench 4 0 2014-05-22 14:19:37.776 !MESSAGE !STACK 0 java.lang.NullPointerException at org.jboss.tools.jmx.ui.internal.editors.AttributeDetails.dispose(AttributeDetails.java:173) at org.eclipse.ui.forms.DetailsPart$PageBag.dispose(DetailsPart.java:65) at org.eclipse.ui.forms.DetailsPart.dispose(DetailsPart.java:149) at org.eclipse.ui.forms.ManagedForm.dispose(ManagedForm.java:174) at org.eclipse.ui.forms.editor.FormPage.dispose(FormPage.java:178) at org.eclipse.ui.forms.editor.FormEditor.dispose(FormEditor.java:403) at org.eclipse.ui.internal.e4.compatibility.CompatibilityPart.invalidate(CompatibilityPart.java:221) at org.eclipse.ui.internal.e4.compatibility.CompatibilityPart.destroy(CompatibilityPart.java:369) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:56) at org.eclipse.e4.core.internal.di.InjectorImpl.processAnnotated(InjectorImpl.java:888) at org.eclipse.e4.core.internal.di.InjectorImpl.processAnnotated(InjectorImpl.java:869) at org.eclipse.e4.core.internal.di.InjectorImpl.uninject(InjectorImpl.java:180) at org.eclipse.e4.core.internal.di.Requestor.uninject(Requestor.java:142) at org.eclipse.e4.core.internal.contexts.ContextObjectSupplier$ContextInjectionListener.update(ContextObjectSupplier.java:82) at org.eclipse.e4.core.internal.contexts.TrackableComputationExt.update(TrackableComputationExt.java:107) at org.eclipse.e4.core.internal.contexts.EclipseContext.removeListenersTo(EclipseContext.java:460) at org.eclipse.e4.core.contexts.ContextInjectionFactory.uninject(ContextInjectionFactory.java:144) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeRemoveGui(PartRenderingEngine.java:917) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.access$3(PartRenderingEngine.java:837) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$8.run(PartRenderingEngine.java:832) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.removeGui(PartRenderingEngine.java:817) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$1.handleEvent(PartRenderingEngine.java:154) at org.eclipse.e4.ui.services.internal.events.UIEventHandler$1.run(UIEventHandler.java:41) at org.eclipse.swt.widgets.Synchronizer.syncExec(Synchronizer.java:187) at org.eclipse.ui.internal.UISynchronizer.syncExec(UISynchronizer.java:150) at org.eclipse.swt.widgets.Display.syncExec(Display.java:4561) at org.eclipse.e4.ui.internal.workbench.swt.E4Application$1.syncExec(E4Application.java:210) at org.eclipse.e4.ui.services.internal.events.UIEventHandler.handleEvent(UIEventHandler.java:38) 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:80) at org.eclipse.e4.ui.internal.workbench.UIEventPublisher.notifyChanged(UIEventPublisher.java:58) at org.eclipse.emf.common.notify.impl.BasicNotifierImpl.eNotify(BasicNotifierImpl.java:374) at org.eclipse.e4.ui.model.application.ui.impl.UIElementImpl.setToBeRendered(UIElementImpl.java:303) at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.hidePart(PartServiceImpl.java:1232) at org.eclipse.ui.internal.WorkbenchPage.hidePart(WorkbenchPage.java:1501) at org.eclipse.ui.internal.WorkbenchPage.hidePart(WorkbenchPage.java:1452) at org.eclipse.ui.internal.WorkbenchPage.closeEditors(WorkbenchPage.java:1422) at org.eclipse.ui.internal.WorkbenchPage.closeEditor(WorkbenchPage.java:1546) at org.jboss.tools.jmx.ui.internal.editors.EditorConnectionMapping$1.run(EditorConnectionMapping.java:54) at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35) at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:136) at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:3748) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3396) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:1122) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1006) at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:147) at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:630) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:574) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:125) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:133) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:103) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:378) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:232) 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:1462) at org.eclipse.equinox.launcher.Main.main(Main.java:1438)