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An error dialog is shown only with the name of the class. Eg. the exception is printed: java.lang.ClassNotFoundException: com/klg/jclass/swing/JCTreeExplorer at org.openide.loaders.InstanceSupport.instanceCreate(InstanceSupport.java:173) at org.openide.actions.CustomizeBeanAction.customize(CustomizeBeanAction.java:106) at org.openide.actions.CustomizeBeanAction$1.run(CustomizeBeanAction.java:53) at org.openide.util.Task.run(Task.java:125) at org.openide.util.RequestProcessor$ProcessorThread.run(RequestProcessor.java:379)
Priority is changed to P4 (normal).