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From "Robert Zeigler (JIRA)" <j...@apache.org>
Subject [jira] Commented: (CAY-1196) ClassNotFoundException in modeler
Date Mon, 16 Mar 2009 19:04:18 GMT

    [ https://issues.apache.org/cayenne/browse/CAY-1196?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13283#action_13283
] 

Robert Zeigler commented on CAY-1196:
-------------------------------------

Even using the 3.0M5 modeler, I can't duplicate this behavior.
Although... I'm trying on a mac. 

I'll see if I can duplicate it on my ubuntu install.

> ClassNotFoundException in modeler
> ---------------------------------
>
>                 Key: CAY-1196
>                 URL: https://issues.apache.org/cayenne/browse/CAY-1196
>             Project: Cayenne
>          Issue Type: Bug
>          Components: CayenneModeler GUI
>    Affects Versions: 3.0M5
>         Environment: Ubuntu Linux
>            Reporter: Michael Shea
>            Priority: Minor
>
> To duplicate:
> 1. Open an existing project with the Cayenne Modeler.
> 2. Select an existing attribute on an existing object entity. Delete the Java Type field.
> 3. Navigate to some other object entity.
> 4. Go back to the original one and click the "attributes" tab. You will see that the
GUI doesn't get updated when you switch to that tab.
> It looks like the modeler is calling Class.forName( "" ).
> I have managed to work around this by manually editing the map.xml file and filling in
a valid java classname for the attribute in question.
> The following stacktrace is printed to the console:
> Exception in thread "AWT-EventQueue-0" org.apache.cayenne.CayenneRuntimeException: [v.3.0M5
Dec 09 2008 00:19:19] Failed to load class for name '':                                  
                                                 
>         at org.apache.cayenne.map.ObjAttribute.getJavaClass(ObjAttribute.java:79)   
                                                                                         
                                                        
>         at org.apache.cayenne.modeler.editor.ObjAttributeTableModel.getValueAt(ObjAttributeTableModel.java:174)
                                                                                         
                             
>         at javax.swing.JTable.getValueAt(JTable.java:2695)                          
                                                                                         
                                                        
>         at javax.swing.JTable.prepareRenderer(JTable.java:5712)
>         at javax.swing.plaf.basic.BasicTableUI.paintCell(BasicTableUI.java:2075)
>         at javax.swing.plaf.basic.BasicTableUI.paintCells(BasicTableUI.java:1977)
>         at javax.swing.plaf.basic.BasicTableUI.paint(BasicTableUI.java:1773)
>         at javax.swing.plaf.ComponentUI.update(ComponentUI.java:143)
>         at javax.swing.JComponent.paintComponent(JComponent.java:763)
>         at javax.swing.JComponent.paint(JComponent.java:1027)
>         at javax.swing.JComponent.paintChildren(JComponent.java:864)
>         at javax.swing.JComponent.paint(JComponent.java:1036)
>         at javax.swing.JViewport.paint(JViewport.java:747)
>         at javax.swing.JComponent.paintChildren(JComponent.java:864)
>         at javax.swing.JComponent.paint(JComponent.java:1036)
>         at javax.swing.JComponent.paintToOffscreen(JComponent.java:5122)
>         at javax.swing.BufferStrategyPaintManager.paint(BufferStrategyPaintManager.java:277)
>         at javax.swing.RepaintManager.paint(RepaintManager.java:1217)
>         at javax.swing.JComponent._paintImmediately(JComponent.java:5070)
>         at javax.swing.JComponent.paintImmediately(JComponent.java:4880)
>         at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:803)
>         at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:714)
>         at javax.swing.RepaintManager.seqPaintDirtyRegions(RepaintManager.java:694)
>         at javax.swing.SystemEventQueueUtilities$ComponentWorkRequest.run(SystemEventQueueUtilities.java:128)
>         at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
>         at java.awt.EventQueue.dispatchEvent(EventQueue.java:597)
>         at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
>         at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
>         at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
>         at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
>         at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
>         at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)
> Caused by: java.lang.ClassNotFoundException:
>         at java.lang.Class.forName0(Native Method)
>         at java.lang.Class.forName(Class.java:247)
>         at org.apache.cayenne.util.Util.getJavaClass(Util.java:588)
>         at org.apache.cayenne.map.ObjAttribute.getJavaClass(ObjAttribute.java:76)
>         ... 31 more

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