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via Oracle Community by 807595, 1 year ago
This exception has no message.
java.lang.NullPointerException: 	at QuestionEditor$1.itemStateChanged(	at javax.swing.JComboBox.fireItemStateChanged(	at javax.swing.JComboBox.selectedItemChanged(	at javax.swing.JComboBox.contentsChanged(	at javax.swing.AbstractListModel.fireContentsChanged(	at javax.swing.DefaultComboBoxModel.setSelectedItem(	at javax.swing.DefaultComboBoxModel.addElement(	at javax.swing.JComboBox.addItem(	at QuestionEditor.getJComboBox(	at QuestionEditor.getJContentPane(	at QuestionEditor.initialize(	at QuestionEditor.(	at Alypaa.(	at Alypaa.main(