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via Coderanch by naved momin, 1 year ago
This exception has no message.
java.lang.NullPointerException at javax.swing.plaf.basic.BasicListUI$Handler.valueChanged(BasicListUI.java:2613) at javax.swing.DefaultListSelectionModel.fireValueChanged(DefaultListSelectionModel.java:167) at javax.swing.DefaultListSelectionModel.fireValueChanged(DefaultListSelectionModel.java:137) at javax.swing.DefaultListSelectionModel.setValueIsAdjusting(DefaultListSelectionModel.java:668) at javax.swing.JList.setValueIsAdjusting(JList.java:2110) at javax.swing.plaf.basic.BasicListUI$Handler.mouseReleased(BasicListUI.java:2784) at java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:273)