Unhandled event loop exception when connecting to WildFly/EAP in JMX Navigator ------------------------------------------------------------------------------ Key: JBIDE-20669 URL: https://issues.jboss.org/browse/JBIDE-20669 Project: Tools (JBoss Tools) Issue Type: Bug Components: jmx Affects Versions: 4.3.0.CR1 Reporter: Martin Malina Assignee: Rob Stryker Labels: regression, respin-a Fix For: 4.3.0.CR1 I'm getting exceptions when I connect to a running server in JMX Navigator. I first noticed this with WildFly 10, but then verified it happens for WildFly 8.2.1 and EAP 6.4 also. The connection is established. But the only thing that works is MBeans - you can double click them and they will open, or you can just click one and the Property view will show details. But if you try to view properties of the connection itself, you will get more errors. The initial error is this: {code} Unhandled event loop exception org.eclipse.swt.SWTException: Failed to execute runnable (org.eclipse.core.runtime.AssertionFailedException: null argument:) at org.eclipse.swt.SWT.error(SWT.java:4491) at org.eclipse.swt.SWT.error(SWT.java:4406) at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:138) at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4024) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3700) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$4.run(PartRenderingEngine.java:1127) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1018) at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:156) at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:654) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:598) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:139) 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:380) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:235) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:497) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:669) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:608) at org.eclipse.equinox.launcher.Main.run(Main.java:1515) Caused by: org.eclipse.core.runtime.AssertionFailedException: null argument: at org.eclipse.core.runtime.Assert.isNotNull(Assert.java:85) at org.eclipse.core.runtime.Assert.isNotNull(Assert.java:73) at org.eclipse.jface.viewers.StructuredViewer.assertElementsNotNull(StructuredViewer.java:583) at org.eclipse.jface.viewers.AbstractTreeViewer.setExpandedTreePaths(AbstractTreeViewer.java:2448) at org.jboss.tools.jmx.ui.internal.views.navigator.MBeanExplorerContentProvider$1$1.run(MBeanExplorerContentProvider.java:208) at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35) at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:135) ... 23 more {code} When you right-click the server in JMX Navigator, you get this: {code} Problems occurred when invoking code from plug-in: "org.eclipse.ui.navigator". java.lang.NullPointerException at org.jboss.ide.eclipse.as.jmx.integration.jvmmonitor.JBossActiveJvm.<init>(JBossActiveJvm.java:70) at org.jboss.ide.eclipse.as.jmx.integration.JBossServerConnection.getActiveJvm(JBossServerConnection.java:379) at org.jboss.tools.jmx.local.internal.actions.AttachActionProvider.fillContextMenu(AttachActionProvider.java:55) at org.eclipse.ui.navigator.NavigatorActionService$2.run(NavigatorActionService.java:225) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42) at org.eclipse.ui.navigator.NavigatorActionService.addCommonActionProviderMenu(NavigatorActionService.java:219) at org.eclipse.ui.navigator.NavigatorActionService.fillContextMenu(NavigatorActionService.java:174) at org.eclipse.ui.navigator.CommonNavigatorManager.fillContextMenu(CommonNavigatorManager.java:267) at org.eclipse.ui.navigator.CommonNavigatorManager$3.menuAboutToShow(CommonNavigatorManager.java:283) at org.eclipse.jface.action.MenuManager.fireAboutToShow(MenuManager.java:333) at org.eclipse.jface.action.MenuManager.handleAboutToShow(MenuManager.java:466) at org.eclipse.jface.action.MenuManager.access$1(MenuManager.java:461) at org.eclipse.jface.action.MenuManager$2.menuShown(MenuManager.java:493) at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:255) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4230) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1491) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1514) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1495) at org.eclipse.swt.widgets.Menu.menuWillOpen(Menu.java:811) at org.eclipse.swt.widgets.Display.windowProc(Display.java:5746) at org.eclipse.swt.internal.cocoa.OS.objc_msgSend(Native Method) at org.eclipse.swt.internal.cocoa.NSMenu.popUpContextMenu(NSMenu.java:77) at org.eclipse.swt.widgets.Menu._setVisible(Menu.java:280) at org.eclipse.swt.widgets.Display.runPopups(Display.java:4149) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3691) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$4.run(PartRenderingEngine.java:1127) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1018) at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:156) at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:654) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:598) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:139) 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:380) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:235) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:497) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:669) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:608) at org.eclipse.equinox.launcher.Main.run(Main.java:1515) {code} And also a NPE: {code} java.lang.NullPointerException java.lang.NullPointerException at org.jboss.ide.eclipse.as.jmx.integration.jvmmonitor.JBossActiveJvm.<init>(JBossActiveJvm.java:70) at org.jboss.ide.eclipse.as.jmx.integration.JBossServerConnection.getActiveJvm(JBossServerConnection.java:379) at org.jboss.tools.jmx.local.internal.actions.AttachActionProvider.fillContextMenu(AttachActionProvider.java:55) at org.eclipse.ui.navigator.NavigatorActionService$2.run(NavigatorActionService.java:225) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42) at org.eclipse.ui.navigator.NavigatorActionService.addCommonActionProviderMenu(NavigatorActionService.java:219) at org.eclipse.ui.navigator.NavigatorActionService.fillContextMenu(NavigatorActionService.java:174) at org.eclipse.ui.navigator.CommonNavigatorManager.fillContextMenu(CommonNavigatorManager.java:267) at org.eclipse.ui.navigator.CommonNavigatorManager$3.menuAboutToShow(CommonNavigatorManager.java:283) at org.eclipse.jface.action.MenuManager.fireAboutToShow(MenuManager.java:333) at org.eclipse.jface.action.MenuManager.handleAboutToShow(MenuManager.java:466) at org.eclipse.jface.action.MenuManager.access$1(MenuManager.java:461) at org.eclipse.jface.action.MenuManager$2.menuShown(MenuManager.java:493) at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:255) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4230) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1491) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1514) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1495) at org.eclipse.swt.widgets.Menu.menuWillOpen(Menu.java:811) at org.eclipse.swt.widgets.Display.windowProc(Display.java:5746) at org.eclipse.swt.internal.cocoa.OS.objc_msgSend(Native Method) at org.eclipse.swt.internal.cocoa.NSMenu.popUpContextMenu(NSMenu.java:77) at org.eclipse.swt.widgets.Menu._setVisible(Menu.java:280) at org.eclipse.swt.widgets.Display.runPopups(Display.java:4149) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3691) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$4.run(PartRenderingEngine.java:1127) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1018) at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:156) at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:654) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:598) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:139) 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:380) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:235) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:497) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:669) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:608) at org.eclipse.equinox.launcher.Main.run(Main.java:1515) {code} I'm using JBDS 9.0.0.CR1 B100 running on Oracle JDK 1.8 on OS X.