Error during dispatching of java.awt.event.InvocationEvent[INVOCATION_DEFAULT,runnable=com.intellij.openapi.util.EdtRunnable$1@ae9e7a2,notifier=null,catchExceptions=false,when=1289590730675] on sun.awt.X11.XToolkit@511c627c
java.lang.NullPointerException
    at com.intellij.openapi.ui.MasterDetailsComponent.addNode(MasterDetailsComponent.java:490)
    at com.intellij.openapi.roots.ui.configuration.projectRoot.FacetStructureConfigurable.addFacetNode(FacetStructureConfigurable.java:105)
    at com.intellij.openapi.roots.ui.configuration.projectRoot.FacetEditorFacadeImpl.a(FacetEditorFacadeImpl.java:65)
    at com.intellij.openapi.roots.ui.configuration.projectRoot.FacetEditorFacadeImpl.createAndAddFacet(FacetEditorFacadeImpl.java:128)
    at com.intellij.openapi.roots.ui.configuration.projectRoot.FacetEditorFacadeImpl.createFacet(FacetEditorFacadeImpl.java:123)
    at com.intellij.facet.impl.ui.actions.AddFacetAction.actionPerformed(AddFacetAction.java:53)
    at com.intellij.ui.popup.PopupFactoryImpl$ActionPopupStep$1.run(PopupFactoryImpl.java:482)
    at com.intellij.openapi.wm.impl.FocusManagerImpl.d(FocusManagerImpl.java:428)
    at com.intellij.openapi.wm.impl.FocusManagerImpl.access$200(FocusManagerImpl.java:48)
    at com.intellij.openapi.wm.impl.FocusManagerImpl$1.runEdt(FocusManagerImpl.java:77)
    at com.intellij.openapi.util.EdtRunnable$1.run(EdtRunnable.java:25)
    at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
    at java.awt.EventQueue.dispatchEvent(EventQueue.java:597)
    at com.intellij.ide.IdeEventQueue.e(IdeEventQueue.java:661)
    at com.intellij.ide.IdeEventQueue._dispatchEvent(IdeEventQueue.java:509)
    at com.intellij.ide.IdeEventQueue.b(IdeEventQueue.java:408)
    at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.java:372)
    at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
    at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
    at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:178)
    at java.awt.Dialog$1.run(Dialog.java:1046)
    at java.awt.Dialog$3.run(Dialog.java:1098)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.awt.Dialog.show(Dialog.java:1096)
    at com.intellij.openapi.ui.impl.DialogWrapperPeerImpl$MyDialog.show(DialogWrapperPeerImpl.java:670)
    at com.intellij.openapi.ui.impl.DialogWrapperPeerImpl.show(DialogWrapperPeerImpl.java:412)
    at com.intellij.openapi.ui.DialogWrapper.showAndGetOk(DialogWrapper.java:1063)
    at com.intellij.openapi.ui.DialogWrapper.show(DialogWrapper.java:1048)
    at com.intellij.ide.actions.ShowSettingsUtilImpl.a(ShowSettingsUtilImpl.java:149)
    at com.intellij.ide.actions.ShowSettingsUtilImpl.editConfigurable(ShowSettingsUtilImpl.java:137)
    at com.intellij.ide.actions.ShowStructureSettingsAction.actionPerformed(ShowStructureSettingsAction.java:35)
    at com.intellij.openapi.actionSystem.impl.ActionButton.a(ActionButton.java:153)
    at com.intellij.openapi.actionSystem.impl.ActionButton.a(ActionButton.java:129)
    at com.intellij.openapi.actionSystem.impl.ActionButton.processMouseEvent(ActionButton.java:289)
    at java.awt.Component.processEvent(Component.java:6032)
    at java.awt.Container.processEvent(Container.java:2041)
    at java.awt.Component.dispatchEventImpl(Component.java:4630)
    at java.awt.Container.dispatchEventImpl(Container.java:2099)
    at java.awt.Component.dispatchEvent(Component.java:4460)
    at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4577)
    at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4238)
    at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4168)
    at java.awt.Container.dispatchEventImpl(Container.java:2085)
    at java.awt.Window.dispatchEventImpl(Window.java:2478)
    at java.awt.Component.dispatchEvent(Component.java:4460)
    at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
    at com.intellij.ide.IdeEventQueue.e(IdeEventQueue.java:661)
    at com.intellij.ide.IdeEventQueue._dispatchEvent(IdeEventQueue.java:505)
    at com.intellij.ide.IdeEventQueue.b(IdeEventQueue.java:408)
    at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.java:372)
    at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
    at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
    at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
    at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)