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via Oracle Community by 807587, 1 year ago
java.lang.ClassCastException: 	at javax.swing.plaf.basic.BasicComboPopup$PropertyChangeHandler.propertyChange(BasicComboPopup.java:800)	at javax.swing.event.SwingPropertyChangeSupport.firePropertyChange(SwingPropertyChangeSupport.java:264)	at javax.swing.event.SwingPropertyChangeSupport.firePropertyChange(SwingPropertyChangeSupport.java:232)	at javax.swing.JComponent.firePropertyChange(JComponent.java:3819)	at javax.swing.JComponent.addNotify(JComponent.java:4289)	at java.awt.Container.addImpl(Container.java:658)	at java.awt.Container.add(Container.java:307)