java.lang.AssertionError: Error while wrapping: class com.intellij.openapi.graph.impl.builder.ComparableEdge into: class java.lang.Object
	at com.intellij.openapi.graph.impl.GraphBase.a(GraphBase.java:42)
	at com.intellij.openapi.graph.impl.GraphBase.wrap(GraphBase.java:7)
	at com.intellij.openapi.graph.impl.base.EdgeMapImpl.get(EdgeMapImpl.java:1)
	at com.intellij.openapi.graph.impl.builder.GraphUtil$1.value(GraphUtil.java:1)
	at com.intellij.util.containers.ContainerUtil.find(ContainerUtil.java:138)
	at com.intellij.openapi.graph.impl.builder.GraphUtil.a(GraphUtil.java:62)
	at com.intellij.openapi.graph.impl.builder.GraphUtil.getExistedEdge(GraphUtil.java:95)
	at com.intellij.openapi.graph.impl.builder.GraphBuilderImpl.a(GraphBuilderImpl.java:253)
	at com.intellij.openapi.graph.impl.builder.GraphBuilderImpl.a(GraphBuilderImpl.java:279)
	at com.intellij.openapi.graph.impl.builder.GraphBuilderImpl.addEdge(GraphBuilderImpl.java:151)
	at com.intellij.openapi.graph.impl.builder.GraphBuilderImpl.createDataModel(GraphBuilderImpl.java:205)
	at com.intellij.openapi.graph.impl.builder.GraphBuilderImpl.buildModel(GraphBuilderImpl.java:72)
	at com.intellij.openapi.graph.impl.builder.GraphBuilderImpl.updateGraph(GraphBuilderImpl.java:261)
	at org.jetbrains.plugins.grails.perspectives.PerspectiveFileEditorComponent.reset(PerspectiveFileEditorComponent.java:113)
	at org.jetbrains.plugins.grails.perspectives.DomainClassesRelationsEditor.reset(DomainClassesRelationsEditor.java:75)
	at com.intellij.util.xml.ui.PerspectiveFileEditor.selectNotify(PerspectiveFileEditor.java:209)
	at com.intellij.openapi.fileEditor.impl.FileEditorManagerImpl.openFileImpl3(FileEditorManagerImpl.java:445)
	at com.intellij.openapi.fileEditor.impl.EditorTabbedContainer$MyTabbedPane$1.run(EditorTabbedContainer.java:3)
	at com.intellij.openapi.command.impl.CommandProcessorImpl.executeCommand(CommandProcessorImpl.java:5)
	at com.intellij.openapi.command.impl.CommandProcessorImpl.executeCommand(CommandProcessorImpl.java:89)
	at com.intellij.openapi.fileEditor.impl.EditorTabbedContainer$MyTabbedPane.setSelectedIndex(EditorTabbedContainer.java:42)
	at com.intellij.ui.TabbedPaneWrapper.setSelectedIndex(TabbedPaneWrapper.java:74)
	at com.intellij.openapi.fileEditor.impl.EditorWindow.setSelectedEditor(EditorWindow.java:237)
	at com.intellij.openapi.fileEditor.impl.EditorWindow.setEditor(EditorWindow.java:87)
	at com.intellij.openapi.fileEditor.impl.FileEditorManagerImpl.openFileImpl3(FileEditorManagerImpl.java:356)
	at com.intellij.openapi.fileEditor.impl.FileEditorManagerImpl$4.run(FileEditorManagerImpl.java:2)
	at com.intellij.openapi.command.impl.CommandProcessorImpl.executeCommand(CommandProcessorImpl.java:5)
	at com.intellij.openapi.command.impl.CommandProcessorImpl.executeCommand(CommandProcessorImpl.java:89)
	at com.intellij.openapi.fileEditor.impl.FileEditorManagerImpl.openFileImpl2(FileEditorManagerImpl.java:48)
	at com.intellij.openapi.fileEditor.impl.FileEditorManagerImpl.a(FileEditorManagerImpl.java:342)
	at com.intellij.openapi.fileEditor.impl.FileEditorManagerImpl.openFileWithProviders(FileEditorManagerImpl.java:332)
	at com.intellij.openapi.fileEditor.ex.FileEditorManagerEx.openFile(FileEditorManagerEx.java:1)
	at com.intellij.openapi.fileEditor.impl.FileEditorManagerImpl$5.run(FileEditorManagerImpl.java:14)
	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.fileEditor.impl.FileEditorManagerImpl.openEditor(FileEditorManagerImpl.java:195)
	at com.intellij.openapi.fileEditor.OpenFileDescriptor.navigateInAnyFileEditor(OpenFileDescriptor.java:148)
	at com.intellij.openapi.fileEditor.OpenFileDescriptor.navigateInEditor(OpenFileDescriptor.java:132)
	at com.intellij.openapi.fileEditor.OpenFileDescriptor.navigate(OpenFileDescriptor.java:111)
	at com.intellij.extapi.psi.PsiElementBase.navigate(PsiElementBase.java:189)
	at org.jetbrains.plugins.grails.perspectives.graph.DomainClassDependencyPresentation.editNode(DomainClassDependencyPresentation.java:122)
	at org.jetbrains.plugins.grails.perspectives.graph.DomainClassDependencyPresentation.editNode(DomainClassDependencyPresentation.java:37)
	at com.intellij.openapi.graph.impl.builder.GraphEditModeFactoryImpl$1.editNode(GraphEditModeFactoryImpl.java:16)
	at com.intellij.openapi.graph.impl.view.hierarchy.HierarchyEditModeImpl.editNode(HierarchyEditModeImpl.java:58)
	at a.j.nd.mouseClicked(Unknown Source)
	at com.intellij.openapi.graph.impl.view.hierarchy.HierarchyEditModeImpl._mouseClicked(HierarchyEditModeImpl.java:145)
	at com.intellij.openapi.graph.view.EditMode.mouseClicked(EditMode.java:291)
	at com.intellij.openapi.graph.impl.view.hierarchy.HierarchyEditModeImpl.mouseClicked(HierarchyEditModeImpl.java:19)
	at a.j.fd.mouseClicked(Unknown Source)
	at com.intellij.openapi.graph.impl.view.hierarchy.HierarchyEditModeImpl._mouseClicked(HierarchyEditModeImpl.java:53)
	at com.intellij.openapi.graph.view.ViewMode.mouseClicked(ViewMode.java:130)
	at com.intellij.openapi.graph.impl.builder.GraphEditModeFactoryImpl$1.mouseClicked(GraphEditModeFactoryImpl.java:8)
	at com.intellij.openapi.graph.impl.view.hierarchy.HierarchyEditModeImpl.mouseClicked(HierarchyEditModeImpl.java:185)
	at java.awt.AWTEventMulticaster.mouseClicked(AWTEventMulticaster.java:253)
	at java.awt.AWTEventMulticaster.mouseClicked(AWTEventMulticaster.java:252)
	at java.awt.Component.processMouseEvent(Component.java:6044)
	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:3995)
	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)