java.lang.ClassCastException: com.intellij.psi.impl.source.PsiMethodImpl cannot be cast to org.jetbrains.plugins.groovy.lang.psi.GroovyPsiElement
	at org.jetbrains.plugins.groovy.annotator.gutter.OverrideGutter$GrMethodsListCellRenderer.getElementText(OverrideGutter.java:113)
	at com.intellij.ide.util.PsiElementListCellRenderer$LeftRenderer.customizeCellRenderer(PsiElementListCellRenderer.java:25)
	at com.intellij.ui.ColoredListCellRenderer.getListCellRendererComponent(ColoredListCellRenderer.java:65)
	at com.intellij.ide.util.PsiElementListCellRenderer.getListCellRendererComponent(PsiElementListCellRenderer.java:12)
	at javax.swing.plaf.basic.BasicListUI.updateLayoutState(BasicListUI.java:1342)
	at javax.swing.plaf.basic.BasicListUI.maybeUpdateLayoutState(BasicListUI.java:1292)
	at javax.swing.plaf.basic.BasicListUI.getPreferredSize(BasicListUI.java:559)
	at javax.swing.JComponent.getPreferredSize(JComponent.java:1632)
	at com.intellij.openapi.ui.popup.PopupChooserBuilder$MyListWrapper.<init>(PopupChooserBuilder.java:336)
	at com.intellij.openapi.ui.popup.PopupChooserBuilder.<init>(PopupChooserBuilder.java:63)
	at com.intellij.codeInsight.navigation.NavigationUtil.getPsiElementPopup(NavigationUtil.java:2)
	at com.intellij.codeInsight.navigation.NavigationUtil.getPsiElementPopup(NavigationUtil.java:10)
	at org.jetbrains.plugins.groovy.annotator.gutter.OverrideGutter$1.actionPerformed(OverrideGutter.java:73)
	at com.intellij.openapi.editor.impl.EditorGutterComponentImpl.mouseReleased(EditorGutterComponentImpl.java:274)
	at com.intellij.openapi.editor.impl.EditorImpl.g(EditorImpl.java:358)
	at com.intellij.openapi.editor.impl.EditorImpl.access$4100(EditorImpl.java:807)
	at com.intellij.openapi.editor.impl.EditorImpl$13.run(EditorImpl.java:1)
	at com.intellij.openapi.command.impl.CommandProcessorImpl.executeCommand(CommandProcessorImpl.java:103)
	at com.intellij.openapi.command.impl.CommandProcessorImpl.executeCommand(CommandProcessorImpl.java:89)
	at com.intellij.openapi.editor.impl.EditorImpl.c(EditorImpl.java:481)
	at com.intellij.openapi.editor.impl.EditorImpl.access$7600(EditorImpl.java:420)
	at com.intellij.openapi.editor.impl.EditorImpl$MyMouseAdapter.mouseReleased(EditorImpl.java:11)
	at java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:273)
	at java.awt.Component.processMouseEvent(Component.java:6041)
	at javax.swing.JComponent.processMouseEvent(JComponent.java:3265)
	at java.awt.Component.processEvent(Component.java:5806)
	at java.awt.Container.processEvent(Container.java:2058)
	at java.awt.Component.dispatchEventImpl(Component.java:4413)
	at java.awt.Container.dispatchEventImpl(Container.java:2116)
	at java.awt.Component.dispatchEvent(Component.java:4243)
	at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4322)
	at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3986)
	at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3916)
	at java.awt.Container.dispatchEventImpl(Container.java:2102)
	at java.awt.Window.dispatchEventImpl(Window.java:2440)
	at java.awt.Component.dispatchEvent(Component.java:4243)
	at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
	at com.intellij.ide.IdeEventQueue.c(IdeEventQueue.java:131)
	at com.intellij.ide.IdeEventQueue.b(IdeEventQueue.java:18)
	at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.java:136)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:273)
	at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:183)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:173)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:168)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:160)
	at java.awt.EventDispatchThread.run(EventDispatchThread.java:121)