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via Coderanch by Avirup Das, 1 year ago
This exception has no message.
via Coderanch by Rob Spoor, 1 year ago
This exception has no message.
java.lang.NullPointerException: 	at TestFrame$MyTableModel.getColumnClass(TestFrame.java:297)	at javax.swing.JTable.getColumnClass(JTable.java:1752)	at javax.swing.JTable.getCellRenderer(JTable.java:3700)	at javax.swing.plaf.basic.BasicTableUI.paintCell(BasicTableUI.java:1148)	at javax.swing.plaf.basic.BasicTableUI.paintCells(BasicTableUI.java:1051)	at javax.swing.plaf.basic.BasicTableUI.paint(BasicTableUI.java:974)