java.lang.NoClassDefFoundError: org/eclipse/mylyn/commons/core/StatusHandler
   at org.eclipse.mylyn.internal.tasks.core.TaskRepositoryManager$5.handleException(TaskRepositoryManager.java:461)
   at org.eclipse.core.runtime.SafeRunner.handleException(SafeRunner.java:75)
   at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:46)
   at org.eclipse.mylyn.internal.tasks.core.TaskRepositoryManager.notifyRepositorySettingsChanged(TaskRepositoryManager.java:459)
   at org.eclipse.mylyn.internal.tasks.core.TaskRepositoryManager$1.propertyChange(TaskRepositoryManager.java:77)
   at org.eclipse.mylyn.tasks.core.TaskRepository.notifyChangeListeners(TaskRepository.java:887)
   at org.eclipse.mylyn.tasks.core.TaskRepository.setProperty(TaskRepository.java:880)
   at org.eclipse.mylyn.tasks.core.TaskRepository.setRepositoryLabel(TaskRepository.java:864)
   at org.netbeans.modules.jira.repository.JiraRepository.setupProperties(JiraRepository.java:484)
   at org.netbeans.modules.jira.repository.JiraRepository.setupTaskRepository(JiraRepository.java:470)
   at org.netbeans.modules.jira.repository.JiraRepository.setTaskRepository(JiraRepository.java:444)
   at org.netbeans.modules.jira.repository.JiraRepository.setInfoValues(JiraRepository.java:207)
   at org.netbeans.modules.jira.repository.JiraRepositoryController.applyChanges(JiraRepositoryController.java:210)
   at org.netbeans.modules.bugtracking.RepositoryImpl.applyChanges(RepositoryImpl.java:391)
   at org.netbeans.modules.bugtracking.ui.selectors.RepositorySelector.create(RepositorySelector.java:89)
   at org.netbeans.modules.bugtracking.util.BugtrackingUtil.createRepository(BugtrackingUtil.java:75)
   at org.netbeans.modules.bugtracking.tasks.actions.Actions$CreateRepositoryAction.actionPerformed(Actions.java:809)
   at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2018)
   at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2341)
   at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)
   at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)
   at javax.swing.plaf.basic.BasicButtonListener.mousePressed(BasicButtonListener.java:235)
   at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:279)
   at java.awt.Component.processMouseEvent(Component.java:6513)
   at javax.swing.JComponent.processMouseEvent(JComponent.java:3311)
   at java.awt.Component.processEvent(Component.java:6281)
   at java.awt.Container.processEvent(Container.java:2229)
   at java.awt.Component.dispatchEventImpl(Component.java:4872)
   at java.awt.Container.dispatchEventImpl(Container.java:2287)
   at java.awt.Component.dispatchEvent(Component.java:4698)
   at org.netbeans.modules.team.commons.treelist.AbstractListUI.redispatchComponent(AbstractListUI.java:175)
   at org.netbeans.modules.team.commons.treelist.AbstractListUI.access$000(AbstractListUI.java:61)
   at org.netbeans.modules.team.commons.treelist.AbstractListUI$1.mousePressed(AbstractListUI.java:78)
   at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:279)
   at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:279)
   at java.awt.Component.processMouseEvent(Component.java:6513)
   at javax.swing.JComponent.processMouseEvent(JComponent.java:3311)
   at java.awt.Component.processEvent(Component.java:6281)
   at java.awt.Container.processEvent(Container.java:2229)
   at java.awt.Component.dispatchEventImpl(Component.java:4872)
   at java.awt.Container.dispatchEventImpl(Container.java:2287)
   at java.awt.Component.dispatchEvent(Component.java:4698)
   at java.awt.LightweightDispatcher.retargetMouseEvent(LightweightDispatcher.java:4832)
   at java.awt.LightweightDispatcher.processMouseEvent(LightweightDispatcher.java:4489)
   at java.awt.LightweightDispatcher.dispatchEvent(LightweightDispatcher.java:4422)
   at java.awt.Container.dispatchEventImpl(Container.java:2273)
   at java.awt.Window.dispatchEventImpl(Window.java:2719)
   at java.awt.Component.dispatchEvent(Component.java:4698)
   at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:735)
   at java.awt.EventQueue.access$200(EventQueue.java:103)
   at java.awt.EventQueue$3.run(EventQueue.java:694)
   at java.awt.EventQueue$3.run(EventQueue.java:692)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
   at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:87)
   at java.awt.EventQueue$4.run(EventQueue.java:708)
   at java.awt.EventQueue$4.run(EventQueue.java:706)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
   at java.awt.EventQueue.dispatchEvent(EventQueue.java:705)
   at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:159)
   at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:242)
   at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:161)
   at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:150)
   at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:146)
   at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:138)
   at java.awt.EventDispatchThread.run(EventDispatchThread.java:91)