Fix NPE in SortTestDox

update failed for AnAction with ID=buffy.TestDox.SortTestDox
java.lang.NullPointerException
at org.codehaus.testdox.intellij.actions.BaseToggleAction.update(BaseToggleAction.java:23)
at org.codehaus.testdox.intellij.actions.SortTestDoxAction.update(SortTestDoxAction.java:7)
at com.intellij.openapi.actionSystem.ex.ActionUtil.performDumbAwareUpdate(ActionUtil.java:98)
at com.intellij.openapi.actionSystem.impl.Utils.a(Utils.java:161)
at com.intellij.openapi.actionSystem.impl.Utils.expandActionGroup(Utils.java:123)
at com.intellij.openapi.actionSystem.impl.ActionToolbarImpl$2.run(ActionToolbarImpl.java:755)
at com.intellij.openapi.wm.impl.FocusManagerImpl.a(FocusManagerImpl.java:503)
at com.intellij.openapi.wm.impl.FocusManagerImpl.access$2300(FocusManagerImpl.java:52)
at com.intellij.openapi.wm.impl.FocusManagerImpl$7.run(FocusManagerImpl.java:399)
at com.intellij.util.ui.UIUtil.invokeLaterIfNeeded(UIUtil.java:1431)
at com.intellij.openapi.wm.impl.FocusManagerImpl.doWhenFocusSettlesDown(FocusManagerImpl.java:390)
at com.intellij.openapi.actionSystem.impl.ActionToolbarImpl.a(ActionToolbarImpl.java:801)
at com.intellij.openapi.actionSystem.impl.ActionToolbarImpl.<init>(ActionToolbarImpl.java:143)
at com.intellij.openapi.actionSystem.impl.ActionToolbarImpl.<init>(ActionToolbarImpl.java:113)
at com.intellij.openapi.actionSystem.impl.ActionManagerImpl.createActionToolbar(ActionManagerImpl.java:194)
at org.codehaus.testdox.intellij.TestDoxProjectComponent.createToolBar(TestDoxProjectComponent.java:139)
at org.codehaus.testdox.intellij.TestDoxProjectComponent.projectOpened(TestDoxProjectComponent.java:91)
at com.intellij.openapi.project.impl.ProjectImpl.c(ProjectImpl.java:347)
at com.intellij.openapi.project.impl.ProjectImpl.access$200(ProjectImpl.java:73)
at com.intellij.openapi.project.impl.ProjectImpl$MyProjectManagerListener.projectOpened(ProjectImpl.java:382)
at com.intellij.openapi.project.impl.ProjectManagerImpl$2.projectOpened(ProjectManagerImpl.java:145)
at com.intellij.openapi.project.impl.ProjectManagerImpl.d(ProjectManagerImpl.java:998)
at com.intellij.openapi.project.impl.ProjectManagerImpl.openProject(ProjectManagerImpl.java:379)
at com.intellij.openapi.project.impl.ProjectManagerImpl.loadAndOpenProject(ProjectManagerImpl.java:437)
at com.intellij.openapi.project.impl.ProjectManagerImpl.loadAndOpenProject(ProjectManagerImpl.java:420)
at com.intellij.ide.impl.ProjectUtil.openProject(ProjectUtil.java:163)
at com.intellij.ide.RecentProjectsManager.doOpenProject(RecentProjectsManager.java:48)
at com.intellij.ide.RecentProjectsManagerBase$ReopenProjectAction.actionPerformed(RecentProjectsManagerBase.java:291)
at com.intellij.openapi.actionSystem.impl.ActionMenuItem$ActionTransmitter$1.run(ActionMenuItem.java:242)
at com.intellij.openapi.wm.impl.FocusManagerImpl.runOnOwnContext(FocusManagerImpl.java:662)
at com.intellij.openapi.wm.impl.IdeFocusManagerImpl.runOnOwnContext(IdeFocusManagerImpl.java:104)
at com.intellij.openapi.actionSystem.impl.ActionMenuItem$ActionTransmitter.actionPerformed(ActionMenuItem.java:228)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2028)
at com.intellij.openapi.actionSystem.impl.ActionMenuItem.fireActionPerformed(ActionMenuItem.java:92)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2351)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)
at javax.swing.AbstractButton.doClick(AbstractButton.java:389)
at com.apple.laf.ScreenMenuItem.actionPerformed(ScreenMenuItem.java:95)
at java.awt.MenuItem.processActionEvent(MenuItem.java:627)
at java.awt.MenuItem.processEvent(MenuItem.java:586)
at java.awt.MenuComponent.dispatchEventImpl(MenuComponent.java:337)
at java.awt.MenuComponent.dispatchEvent(MenuComponent.java:325)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:683)
at java.awt.EventQueue.access$000(EventQueue.java:86)
at java.awt.EventQueue$1.run(EventQueue.java:639)
at java.awt.EventQueue$1.run(EventQueue.java:637)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:87)
at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:98)
at java.awt.EventQueue$2.run(EventQueue.java:653)
at java.awt.EventQueue$2.run(EventQueue.java:651)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:87)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:650)
at com.intellij.ide.IdeEventQueue.e(IdeEventQueue.java:661)
at com.intellij.ide.IdeEventQueue._dispatchEvent(IdeEventQueue.java:514)
at com.intellij.ide.IdeEventQueue.b(IdeEventQueue.java:410)
at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.java:368)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:296)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:211)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:201)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:196)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:188)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)