Error 2006-03-19 13:02:48.624 While calling targetSet for org.argouml.ui.targetmanager.TargetEvent[source=org.argouml.ui.targetmanager.TargetManager@1e001c8] in org.argouml.ui.DetailsPane[,0,0,1000x306,invalid,layout=java.awt.BorderLayout,alignmentX=0.0,alignmentY=0.0,border=,flags=9,maximumSize=,minimumSize=,preferredSize=java.awt.Dimension[width=1000,height=300]] an error is thrown. java.lang.IllegalArgumentException: Unrecognized object [Annotated Element/class org.argouml.uml.diagram.static_structure.ui.CommentEdge] at org.argouml.model.uml.NSUMLModelFacade.illegalArgument(NSUMLModelFacade.java:4568) at org.argouml.model.uml.NSUMLModelFacade.illegalArgumentObject(NSUMLModelFacade.java:4592) at org.argouml.model.uml.NSUMLModelFacade.getChangeability(NSUMLModelFacade.java:2028) at org.argouml.uml.ui.foundation.core.UMLStructuralFeatureChangeabilityRadioButtonPanel.buildModel(UMLStructuralFeatureChangeabilityRadioButtonPanel.java:73) at org.argouml.uml.ui.UMLRadioButtonPanel.setTarget(UMLRadioButtonPanel.java:224) at org.argouml.uml.ui.UMLRadioButtonPanel.targetSet(UMLRadioButtonPanel.java:286) at org.argouml.uml.ui.PropPanel.fireTargetSet(PropPanel.java:691) at org.argouml.uml.ui.PropPanel.targetSet(PropPanel.java:680) at org.argouml.uml.ui.TabProps.fireTargetSet(TabProps.java:510) at org.argouml.uml.ui.TabProps.targetSet(TabProps.java:483) at org.argouml.ui.DetailsPane.fireTargetSet(DetailsPane.java:662) at org.argouml.ui.DetailsPane.targetSet(DetailsPane.java:623) at org.argouml.ui.targetmanager.TargetManager.fireTargetSet(TargetManager.java:619) at org.argouml.ui.targetmanager.TargetManager.internalOnSetTarget(TargetManager.java:393) at org.argouml.ui.targetmanager.TargetManager.setTargets(TargetManager.java:491) at org.argouml.ui.explorer.ExplorerTree$NavigationTreeSelectionListener.valueChanged(ExplorerTree.java:419) at javax.swing.JTree.fireValueChanged(JTree.java:2399) at javax.swing.JTree$TreeSelectionRedirector.valueChanged(JTree.java:2770) at javax.swing.tree.DefaultTreeSelectionModel.fireValueChanged(DefaultTreeSelectionModel.java:629) at javax.swing.tree.DefaultTreeSelectionModel.notifyPathChange(DefaultTreeSelectionModel.java:1078) at javax.swing.tree.DefaultTreeSelectionModel.setSelectionPaths(DefaultTreeSelectionModel.java:287) at javax.swing.tree.DefaultTreeSelectionModel.setSelectionPath(DefaultTreeSelectionModel.java:170) at javax.swing.JTree.setSelectionPath(JTree.java:1174) at javax.swing.plaf.basic.BasicTreeUI.selectPathForEvent(BasicTreeUI.java:2296) at javax.swing.plaf.basic.BasicTreeUI$Handler.handleSelectionImpl(BasicTreeUI.java:3505) at javax.swing.plaf.basic.BasicTreeUI$Handler.handleSelection(BasicTreeUI.java:3480) at javax.swing.plaf.basic.BasicTreeUI$Handler.mousePressed(BasicTreeUI.java:3461) at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:222) at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:221) at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:221) at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:221) at java.awt.Component.processMouseEvent(Component.java:5485) at javax.swing.JComponent.processMouseEvent(JComponent.java:3126) at java.awt.Component.processEvent(Component.java:5253) at java.awt.Container.processEvent(Container.java:1966) at java.awt.Component.dispatchEventImpl(Component.java:3955) at java.awt.Container.dispatchEventImpl(Container.java:2024) at java.awt.Component.dispatchEvent(Component.java:3803) at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4212) at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3889) at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3822) at java.awt.Container.dispatchEventImpl(Container.java:2010) at java.awt.Component.dispatchEvent(Component.java:3803) at java.awt.EventQueue.dispatchEvent(EventQueue.java:463) at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:242) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:163) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:157) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:149) at java.awt.EventDispatchThread.run(EventDispatchThread.java:110)