ASSERT: make sure that you have a server adapter EXEC: open it in the server editor ASSERT: the widgets in the openshift section are disabled, in the status bar (or progress view) you see a job "Loading projects..." running EXEC: close the editor ASSERT: nothing happens so far, but you see another job running "Setting connection, deploy..." Result: you get an error telling you of some widget being disposed: In the Eclipse log you spot the following: org.eclipse.swt.SWTException: Widget is disposed at org.eclipse.swt.SWT.error(SWT.java:4522) at org.eclipse.swt.SWT.error(SWT.java:4437) at org.eclipse.swt.SWT.error(SWT.java:4408) at org.eclipse.swt.widgets.Widget.error(Widget.java:482) at org.eclipse.swt.widgets.Widget.checkWidget(Widget.java:419) at org.eclipse.swt.widgets.Control.setCursor(Control.java:4393) at org.jboss.tools.foundation.ui.jobs.DisableAllWidgetsJob.run(DisableAllWidgetsJob.java:52) at org.jboss.tools.foundation.ui.jobs.DisableAllWidgetsJob.runInUIThread(DisableAllWidgetsJob.java:42) at org.eclipse.ui.progress.UIJob$1.run(UIJob.java:97) at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35) at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:182) at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:3807) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3446) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$4.run(PartRenderingEngine.java:1118) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1019) at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:157) at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:691) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:604) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150) 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:483) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:670) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:609) at org.eclipse.equinox.launcher.Main.run(Main.java:1516) at org.eclipse.equinox.launcher.Main.main(Main.java:1489)