[CAY-1786] javax.swing.table.DefaultTableModel cannot be cast to org.apache.cayenne.modeler.editor.ObjAttributeTableModel

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 3.2.M1
• Component/s: Modeler
• Environment: 3.2 build from Dec 18, OS X 10.0
• Assignee: Unassigned
• Reporter: Andrus Adamchik
• Created: 03/Jan/13 13:20
• Updated: 07/Jan/13 18:50
• Resolved: 07/Jan/13 18:50

Description

This was first described in comments to CAY-1727... While CAY-1727 is fixed, the ClassCastException remains, so it is a separate issue. It doesn't happen on every model, but it does happen on a few that I have (and that I can't publicly share) pretty consistently. It goes something like this (but I am not 100% sure of the scenario) :

1. Open a project
2. Navigate to any ObjEntity, select its "attributes" tab
3. CLick on DataMap
4. Click back on any ObjEntity.

Exception in thread "AWT-EventQueue-0" java.lang.ClassCastException: javax.swing.table.DefaultTableModel cannot be cast to org.apache.cayenne.modeler.editor.ObjAttributeTableModel
at org.apache.cayenne.modeler.editor.ObjEntityAttributeTab.selectAttributes(ObjEntityAttributeTab.java:250)
at org.apache.cayenne.modeler.editor.ObjEntityTabbedView.currentObjAttributeChanged(ObjEntityTabbedView.java:190)
at org.apache.cayenne.modeler.ProjectController.fireObjAttributeDisplayEvent(ProjectController.java:1464)
at org.apache.cayenne.modeler.editor.ObjEntityAttributeTab.processExistingSelection(ObjEntityAttributeTab.java:298)
at org.apache.cayenne.modeler.editor.ObjEntityTabbedView$1.stateChanged(ObjEntityTabbedView.java:120)
at javax.swing.JTabbedPane.fireStateChanged(JTabbedPane.java:400)
at javax.swing.JTabbedPane$ModelListener.stateChanged(JTabbedPane.java:253)
at javax.swing.DefaultSingleSelectionModel.fireStateChanged(DefaultSingleSelectionModel.java:116)
at javax.swing.DefaultSingleSelectionModel.setSelectedIndex(DefaultSingleSelectionModel.java:50)
at javax.swing.JTabbedPane.setSelectedIndexImpl(JTabbedPane.java:599)
at javax.swing.JTabbedPane.setSelectedIndex(JTabbedPane.java:574)
at org.apache.cayenne.modeler.editor.ObjEntityTabbedView.currentObjEntityChanged(ObjEntityTabbedView.java:151)
at org.apache.cayenne.modeler.ProjectController.fireObjEntityDisplayEvent(ProjectController.java:1239)
at org.apache.cayenne.modeler.ProjectTreeView.processSelection(ProjectTreeView.java:848)
at org.apache.cayenne.modeler.ProjectTreeView$1.valueChanged(ProjectTreeView.java:150)
at javax.swing.JTree.fireValueChanged(JTree.java:2820)
at javax.swing.JTree$TreeSelectionRedirector.valueChanged(JTree.java:3191)
at javax.swing.tree.DefaultTreeSelectionModel.fireValueChanged(DefaultTreeSelectionModel.java:629)