java.lang.ClassCastException: This exception has no message.

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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)

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