java.lang.IllegalStateException: No instance data can be specified.
   at org.eclipse.core.internal.runtime.DataArea.assertLocationInitialized(DataArea.java:50)
   at org.eclipse.core.internal.runtime.DataArea.getStateLocation(DataArea.java:120)
   at org.eclipse.core.internal.runtime.InternalPlatform.getStateLocation(InternalPlatform.java:606)
   at org.eclipse.core.internal.runtime.InternalPlatform.getStateLocation(InternalPlatform.java:601)
   at org.eclipse.core.runtime.Platform.getStateLocation(Platform.java:1009)
   at org.eclipse.mylyn.internal.bugzilla.core.BugzillaCorePlugin.getConfigurationCachePath(BugzillaCorePlugin.java:66)
   at org.eclipse.mylyn.internal.bugzilla.core.BugzillaRepositoryConnector.<init>(BugzillaRepositoryConnector.java:147)
   at org.netbeans.modules.bugzilla.Bugzilla.<init>(Bugzilla.java:83)
   at org.netbeans.modules.bugzilla.Bugzilla.getInstance(Bugzilla.java:97)
   at org.netbeans.modules.bugzilla.repository.BugzillaRepository.createTaskRepository(BugzillaRepository.java:436)
   at org.netbeans.modules.bugzilla.repository.BugzillaRepository.<init>(BugzillaRepository.java:145)
   at org.netbeans.modules.bugzilla.BugzillaConnector.createRepository(BugzillaConnector.java:82)
   at org.netbeans.modules.bugtracking.DelegatingConnector.createRepository(DelegatingConnector.java:120)
   at org.netbeans.modules.bugtracking.RepositoryRegistry.getStoredRepositories(RepositoryRegistry.java:259)
   at org.netbeans.modules.bugtracking.RepositoryRegistry.getRepositories(RepositoryRegistry.java:122)
   at org.netbeans.modules.bugtracking.tasklist.TaskListProvider.setScope(TaskListProvider.java:138)
   at org.netbeans.modules.tasklist.impl.TaskManagerImpl.attachPushScanners(TaskManagerImpl.java:210)
   at org.netbeans.modules.tasklist.impl.TaskManagerImpl.doObserve(TaskManagerImpl.java:167)
   at org.netbeans.modules.tasklist.impl.TaskManagerImpl.access$000(TaskManagerImpl.java:78)
   at org.netbeans.modules.tasklist.impl.TaskManagerImpl$1.run(TaskManagerImpl.java:111)
Caused: org.openide.util.RequestProcessor$SlowItem: task failed due to: java.lang.IllegalStateException: No instance data can be specified.
   at org.openide.util.RequestProcessor.post(RequestProcessor.java:424)
   at org.netbeans.modules.tasklist.impl.TaskManagerImpl.observe(TaskManagerImpl.java:108)
   at org.netbeans.modules.tasklist.ui.TaskListTopComponent.init(TaskListTopComponent.java:366)
   at org.netbeans.modules.tasklist.ui.TaskListTopComponent.access$100(TaskListTopComponent.java:88)
   at org.netbeans.modules.tasklist.ui.TaskListTopComponent$2$1.run(TaskListTopComponent.java:275)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1452)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2032)