org.jetbrains.plugins.ruby.ruby.roots.RubyModuleContentRootManagerImpl
java.lang.ClassCastException: org.jetbrains.plugins.ruby.ruby.roots.RubyModuleContentRootManagerImpl
	at org.jetbrains.plugins.ruby.ruby.module.ui.roots.testFrameWork.RORSelectTestFrameworkPanel.<init>(RORSelectTestFrameworkPanel.java:93)
	at org.jetbrains.plugins.ruby.ruby.module.ui.roots.testFrameWork.RTestFrameworkChooser.createComponentImpl(RTestFrameworkChooser.java:74)
	at com.intellij.openapi.roots.ui.configuration.ModuleElementsEditor.createComponent(ModuleElementsEditor.java:1)
	at com.intellij.openapi.roots.ui.configuration.ModuleEditor.a(ModuleEditor.java:83)
	at com.intellij.openapi.roots.ui.configuration.ModuleEditor.getPanel(ModuleEditor.java:100)
	at com.intellij.openapi.roots.ui.configuration.projectRoot.ModuleConfigurable.createOptionsPanel(ModuleConfigurable.java:19)
	at com.intellij.openapi.ui.NamedConfigurable.createComponent(NamedConfigurable.java:76)
	at com.intellij.openapi.ui.MasterDetailsComponent.updateSelection(MasterDetailsComponent.java:536)
	at com.intellij.openapi.roots.ui.configuration.projectRoot.ModuleStructureConfigurable.a(ModuleStructureConfigurable.java:183)
	at com.intellij.openapi.roots.ui.configuration.projectRoot.ModuleStructureConfigurable.updateSelection(ModuleStructureConfigurable.java:17)
	at com.intellij.openapi.ui.MasterDetailsComponent.updateSelectionFromTree(MasterDetailsComponent.java:181)
	at com.intellij.openapi.ui.MasterDetailsComponent.access$200(MasterDetailsComponent.java:61)
	at com.intellij.openapi.ui.MasterDetailsComponent$5.scrollToSource(MasterDetailsComponent.java:159)
	at com.intellij.ui.AutoScrollToSourceHandler$7.run(AutoScrollToSourceHandler.java:120)
	at com.intellij.openapi.application.impl.LaterInvocator$FlushQueue.run(LaterInvocator.java:16)
	at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
	at java.awt.EventQueue.dispatchEvent(EventQueue.java:461)
	at com.intellij.ide.IdeEventQueue.c(IdeEventQueue.java:84)
	at com.intellij.ide.IdeEventQueue.b(IdeEventQueue.java:175)
	at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.java:8)
	at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:269)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:190)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:180)
	at java.awt.Dialog$1.run(Dialog.java:535)
	at java.awt.Dialog$2.run(Dialog.java:563)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.awt.Dialog.show(Dialog.java:561)
	at com.intellij.openapi.ui.impl.DialogWrapperPeerImpl$MyDialog.show(DialogWrapperPeerImpl.java:102)
	at com.intellij.openapi.ui.impl.DialogWrapperPeerImpl.show(DialogWrapperPeerImpl.java:74)
	at com.intellij.openapi.ui.DialogWrapper.show(DialogWrapper.java:813)
	at com.intellij.openapi.options.ex.ControlPanelSettingsEditor.b(ControlPanelSettingsEditor.java:17)
	at com.intellij.openapi.options.ex.ControlPanelSettingsEditor.access$300(ControlPanelSettingsEditor.java:152)
	at com.intellij.openapi.options.ex.ControlPanelSettingsEditor$MyActionButton$1.mouseReleased(ControlPanelSettingsEditor.java:8)
	at java.awt.Component.processMouseEvent(Component.java:5602)
	at javax.swing.JComponent.processMouseEvent(JComponent.java:3135)
	at java.awt.Component.processEvent(Component.java:5367)
	at java.awt.Container.processEvent(Container.java:2010)
	at java.awt.Component.dispatchEventImpl(Component.java:4068)
	at java.awt.Container.dispatchEventImpl(Container.java:2068)
	at java.awt.Component.dispatchEvent(Component.java:3903)
	at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4256)
	at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3936)
	at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3866)
	at java.awt.Container.dispatchEventImpl(Container.java:2054)
	at java.awt.Window.dispatchEventImpl(Window.java:1791)
	at java.awt.Component.dispatchEvent(Component.java:3903)
	at java.awt.EventQueue.dispatchEvent(EventQueue.java:463)
	at com.intellij.ide.IdeEventQueue.c(IdeEventQueue.java:84)
	at com.intellij.ide.IdeEventQueue.b(IdeEventQueue.java:47)
	at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.java:8)
	at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:269)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:190)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:180)
	at java.awt.Dialog$1.run(Dialog.java:535)
	at java.awt.Dialog$2.run(Dialog.java:563)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.awt.Dialog.show(Dialog.java:561)
	at com.intellij.openapi.ui.impl.DialogWrapperPeerImpl$MyDialog.show(DialogWrapperPeerImpl.java:102)
	at com.intellij.openapi.ui.impl.DialogWrapperPeerImpl.show(DialogWrapperPeerImpl.java:74)
	at com.intellij.openapi.ui.DialogWrapper.show(DialogWrapper.java:813)
	at com.intellij.ide.actions.ShowSettingsUtilImpl.showControlPanelOptions(ShowSettingsUtilImpl.java:35)
	at com.intellij.ide.actions.ShowSettingsUtilImpl.showSettingsDialog(ShowSettingsUtilImpl.java:53)
	at com.intellij.ide.actions.ShowSettingsAction.actionPerformed(ShowSettingsAction.java:4)
	at com.intellij.openapi.actionSystem.impl.ActionButton.a(ActionButton.java:59)
	at com.intellij.openapi.actionSystem.impl.ActionButton.a(ActionButton.java:107)
	at com.intellij.openapi.actionSystem.impl.ActionButton.processMouseEvent(ActionButton.java:78)
	at java.awt.Component.processEvent(Component.java:5367)
	at java.awt.Container.processEvent(Container.java:2010)
	at java.awt.Component.dispatchEventImpl(Component.java:4068)
	at java.awt.Container.dispatchEventImpl(Container.java:2068)
	at java.awt.Component.dispatchEvent(Component.java:3903)
	at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4256)
	at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3936)
	at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3866)
	at java.awt.Container.dispatchEventImpl(Container.java:2054)
	at java.awt.Window.dispatchEventImpl(Window.java:1791)
	at java.awt.Component.dispatchEvent(Component.java:3903)
	at java.awt.EventQueue.dispatchEvent(EventQueue.java:463)
	at com.intellij.ide.IdeEventQueue.c(IdeEventQueue.java:84)
	at com.intellij.ide.IdeEventQueue.b(IdeEventQueue.java:47)
	at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.java:8)
	at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:269)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:190)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:184)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:176)
	at java.awt.EventDispatchThread.run(EventDispatchThread.java:110)