Unhandled event loop exception after some time ---------------------------------------------- Key: JBIDE-16600 URL: https://issues.jboss.org/browse/JBIDE-16600 Project: Tools (JBoss Tools) Issue Type: Bug Components: server Affects Versions: 4.2.0.Alpha2 Environment: JBDS 8.0.0.Alpha2b B71 Reporter: Martin Malina Fix For: 4.2.0.Beta1 Got this: Unhandled event loop exception {code} org.eclipse.swt.SWTException: Failed to execute runnable (org.eclipse.swt.SWTException: Widget is disposed) at org.eclipse.swt.SWT.error(SWT.java:4441) at org.eclipse.swt.SWT.error(SWT.java:4356) at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:139) at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:3978) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3655) 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:146) at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:615) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:566) 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:109) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:80) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:372) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:226) 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:636) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:591) at org.eclipse.equinox.launcher.Main.run(Main.java:1450) Caused by: org.eclipse.swt.SWTException: Widget is disposed at org.eclipse.swt.SWT.error(SWT.java:4441) at org.eclipse.swt.SWT.error(SWT.java:4356) at org.eclipse.swt.SWT.error(SWT.java:4327) at org.eclipse.swt.widgets.Widget.error(Widget.java:783) at org.eclipse.swt.widgets.Widget.checkWidget(Widget.java:573) at org.eclipse.swt.widgets.Control.setEnabled(Control.java:3711) at org.jboss.ide.eclipse.as.ui.editor.internal.StandardDeploymentPageController.updateWidgetEnablement(StandardDeploymentPageController.java:114) at org.jboss.ide.eclipse.as.ui.editor.internal.StandardDeploymentPageController$1$1.run(StandardDeploymentPageController.java:98) at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35) at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:136) ... 23 more {code} Unfortunately I don't have much information here. I don't know what triggers this. It happened today when I verified some JIRAs in JBDS. I have AS 5.1, WildFly 8, EAP 6.2 and another remote EAP 6.2 set up in the workspace. Only one project - Java EE Web project from Central. I started the different servers, deployed, undeployed etc. And then did nothing for maybe 1 hour. When I came back to look at Eclipse, I saw there was this exception in the error log. The thing is that this happened to me last week in different installation and different set of actions, but since it was too random, I didn't report a JIRA then. Now it's the second time, so I'm reporting a JIRA - perhaps somebody has seen the same?