PyCharm 5.0.1 on Mac OS X Yosemite. First attempt to use bzr plugin with PyCharm.
Details from bug are:
update failed for AnAction with ID=Vcs.ShowTabbedFileHistory: org.emergent.bzr4j.intellij.provider.BzrHistoryProvider.canShowHistoryFor(Lcom/intellij/openapi/vfs/VirtualFile;)Z
java.lang.AbstractMethodError: org.emergent.bzr4j.intellij.provider.BzrHistoryProvider.canShowHistoryFor(Lcom/intellij/openapi/vfs/VirtualFile;)Z
at com.intellij.openapi.vcs.actions.TabbedShowHistoryAction.isEnabled(TabbedShowHistoryAction.java:62)
at com.intellij.openapi.vcs.actions.TabbedShowHistoryAction.update(TabbedShowHistoryAction.java:35)
at com.intellij.openapi.vcs.actions.AbstractVcsAction$1.run(AbstractVcsAction.java:58)
at com.intellij.openapi.application.impl.ApplicationImpl.runReadAction(ApplicationImpl.java:938)
at com.intellij.openapi.vcs.actions.AbstractVcsAction.performUpdate(AbstractVcsAction.java:55)
at com.intellij.openapi.vcs.actions.AbstractVcsAction.performUpdate(AbstractVcsAction.java:33)
at com.intellij.openapi.actionSystem.AsyncUpdateAction.update(AsyncUpdateAction.java:65)
at com.intellij.openapi.actionSystem.ex.ActionUtil.performDumbAwareUpdate(ActionUtil.java:114)
at com.intellij.openapi.actionSystem.impl.Utils.a(Utils.java:188)
at com.intellij.openapi.actionSystem.impl.Utils.expandActionGroup(Utils.java:139)
at com.intellij.openapi.actionSystem.impl.Utils.expandActionGroup(Utils.java:164)
at com.intellij.openapi.actionSystem.impl.Utils.expandActionGroup(Utils.java:164)
at com.intellij.openapi.actionSystem.impl.Utils.expandActionGroup(Utils.java:96)
at com.intellij.openapi.actionSystem.impl.ActionToolbarImpl.a(ActionToolbarImpl.java:937)
at com.intellij.openapi.actionSystem.impl.ActionToolbarImpl.access$000(ActionToolbarImpl.java:64)
at com.intellij.openapi.actionSystem.impl.ActionToolbarImpl$1.updateActionsImpl(ActionToolbarImpl.java:173)
at com.intellij.openapi.actionSystem.impl.ToolbarUpdater$MyUpdateRunnable.run(ToolbarUpdater.java:191)
at com.intellij.openapi.wm.impl.FocusManagerImpl.a(FocusManagerImpl.java:675)
at com.intellij.openapi.wm.impl.FocusManagerImpl.g(FocusManagerImpl.java:656)
at com.intellij.openapi.wm.impl.FocusManagerImpl.e(FocusManagerImpl.java:626)
at com.intellij.openapi.wm.impl.FocusManagerImpl.access$200(FocusManagerImpl.java:60)
at com.intellij.openapi.wm.impl.FocusManagerImpl$11.run(FocusManagerImpl.java:522)
at com.intellij.util.ui.UIUtil.invokeLaterIfNeeded(UIUtil.java:2321)
at com.intellij.openapi.wm.impl.FocusManagerImpl.doWhenFocusSettlesDown(FocusManagerImpl.java:500)
at com.intellij.openapi.actionSystem.impl.ToolbarUpdater.a(ToolbarUpdater.java:108)
at com.intellij.openapi.actionSystem.impl.ToolbarUpdater.access$400(ToolbarUpdater.java:40)
at com.intellij.openapi.actionSystem.impl.ToolbarUpdater$MyTimerListener.run(ToolbarUpdater.java:163)
at com.intellij.openapi.actionSystem.impl.WeakTimerListener.run(WeakTimerListener.java:50)
at com.intellij.openapi.actionSystem.impl.ActionManagerImpl$MyTimer.a(ActionManagerImpl.java:1489)
at com.intellij.openapi.actionSystem.impl.ActionManagerImpl$MyTimer.a(ActionManagerImpl.java:1479)
at com.intellij.openapi.actionSystem.impl.ActionManagerImpl$MyTimer.actionPerformed(ActionManagerImpl.java:1463)
at javax.swing.Timer.fireActionPerformed(Timer.java:313)
at javax.swing.Timer$DoPostEvent.run(Timer.java:245)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:749)
at java.awt.EventQueue.access$500(EventQueue.java:97)
at java.awt.EventQueue$3.run(EventQueue.java:702)
at java.awt.EventQueue$3.run(EventQueue.java:696)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:75)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:719)
at com.intellij.ide.IdeEventQueue.f(IdeEventQueue.java:861)
at com.intellij.ide.IdeEventQueue._dispatchEvent(IdeEventQueue.java:649)
at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.java:380)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)
