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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)