Community
Participate
Working Groups
Created attachment 192441 [details] stacktrace I got a NPE in: org.eclipse.emf.facet.util.core.Logger While running a SWTBot UI test (EPackageRegistryTest). I believed what happened is that the Logger was called when the workbench was closing, and after the plug-in Activator's stop() method was called. So, the Activator singleton was null.