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java.lang.String cannot be cast to java.lang.Boolean
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java.lang.String cannot be cast to java.lang.Boolean
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java.lang.String cannot be cast to java.lang.Boolean
java.lang.ClassCastException: java.lang.String	at javax.swing.JTable$BooleanRenderer.getTableCellRendererComponent(JTable.java:3390)	at javax.swing.JTable.prepareRenderer(JTable.java:3682)	at javax.swing.plaf.basic.BasicTableUI.paintCell(BasicTableUI.java:1149)	at javax.swing.plaf.basic.BasicTableUI.paintCells(BasicTableUI.java:1051)