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

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via Oracle Community by 807595, 1 year ago
This exception has no message.
at undefined.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 undefined.QuestionEditor.getJComboBox(
at undefined.QuestionEditor.getJContentPane(
at undefined.QuestionEditor.initialize(
at undefined.QuestionEditor.(
at undefined.Alypaa.(
at undefined.Alypaa.main(

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