1. Set up a docker connection (detection doesn't work for me, so in my case I entered the details for my boot2docker instance on mac manually) and use the default name - Default Local 2. Make sure your docker cannot be detected with the new connection wizard (currently this is always the case for me on OS X) 3. In Docker Explorer view, click the button to create another connection 4. The name will pre-filled with the same default as your working connection: Default Local 5. Click Finish - the wizard will close and there will be an error: (When I first tried this, I would always get a window with this error, but now in a new Eclipse instance, I only get this error in the error view.) Unhandled event loop exception org.eclipse.swt.SWTException: Failed to execute runnable (java.lang.NullPointerException) 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: java.lang.NullPointerException at org.eclipse.linuxtools.internal.docker.core.DockerConnection.listImages(DockerConnection.java:945) at org.eclipse.linuxtools.internal.docker.core.DockerConnection.getImages(DockerConnection.java:921) at org.eclipse.linuxtools.internal.docker.ui.views.DockerImagesContentProvider$1$1.run(DockerImagesContentProvider.java:71) at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35) at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:135) ... 23 more 6. Open the new docker connection wizard again, this time change the name to something else than Default Local 7. Click Finish - the wizard will not close and there will be another Unhandled loop exception thrown in the error view. (When I tried this previously, it eventually froze my Eclipse instance, but now it just generates the errors no matter how many times I try.)