[teiid-designer-issues] [JBoss JIRA] (TEIIDDES-3096) !MESSAGE Unhandled event loop exception in JBDS with Teiid Designer

!MESSAGE Unhandled event loop exception in JBDS with Teiid Designer ------------------------------------------------------------------- Key: TEIIDDES-3096 URL: https://issues.jboss.org/browse/TEIIDDES-3096 Project: Teiid Designer Issue Type: Bug Components: Eclipse Integration Affects Versions: 11.0.1 Environment: * devstudio-10.4.0.GA-installer-standalone.jar Reporter: Kylin Soong Priority: Blocker Attachments: error-1.png, error-2.png This should be a eclipse bug, but strongly affect user experience, I was be blocked in a customer poc testing, * once I started the server, from the server panel, there are lots of logs output to console panel. * then I try to switch to Server panel, the JBDS crash. the error logs like {code} !ENTRY org.eclipse.ui 4 0 2017-08-22 18:41:42.865 !MESSAGE Unhandled event loop exception !STACK 0 org.eclipse.swt.SWTError: No more handles at org.eclipse.swt.SWT.error(SWT.java:4559) at org.eclipse.swt.SWT.error(SWT.java:4448) at org.eclipse.swt.SWT.error(SWT.java:4419) at org.eclipse.swt.graphics.Cursor.<init>(Cursor.java:173) at org.eclipse.swt.widgets.Display.getSystemCursor(Display.java:2688) at org.eclipse.e4.ui.workbench.addons.dndaddon.DragAgent.dragFinished(DragAgent.java:157) at org.eclipse.e4.ui.workbench.addons.dndaddon.PartDragAgent.dragFinished(PartDragAgent.java:93) at org.eclipse.e4.ui.workbench.addons.dndaddon.DnDManager.finishDrag(DnDManager.java:285) at org.eclipse.e4.ui.workbench.addons.dndaddon.DnDManager.startDrag(DnDManager.java:252) at org.eclipse.e4.ui.workbench.addons.dndaddon.DnDManager$1.dragDetected(DnDManager.java:89) at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:128) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) at org.eclipse.swt.widgets.Display.sendEvent(Display.java:5227) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1340) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4561) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:4151) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$4.run(PartRenderingEngine.java:1121) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1022) at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:150) at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:693) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:610) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:148) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:138) 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:388) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:243) 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:498) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:673) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:610) at org.eclipse.equinox.launcher.Main.run(Main.java:1519) at org.eclipse.equinox.launcher.Main.main(Main.java:1492) {code}