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java.lang.NullPointerException at com.izforge.izpack.panels.PacksPanelBase$CheckBoxRenderer.getTableCellRendererComponent(Unknown Source) at javax.swing.JTable$AccessibleJTable.getAccessibleChild(JTable.java:7023) at javax.swing.JTable$AccessibleJTable.getAccessibleAt(JTable.java:7410) at javax.swing.JTable$AccessibleJTable.valueChanged(JTable.java:6923) at javax.swing.DefaultListSelectionModel.fireValueChanged(DefaultListSelectionModel.java:167) at javax.swing.DefaultListSelectionModel.fireValueChanged(DefaultListSelectionModel.java:147) at javax.swing.DefaultListSelectionModel.fireValueChanged(DefaultListSelectionModel.java:194) at javax.swing.DefaultListSelectionModel.changeSelection(DefaultListSelectionModel.java:388) at javax.swing.DefaultListSelectionModel.changeSelection(DefaultListSelectionModel.java:398) at javax.swing.DefaultListSelectionModel.removeSelectionIntervalImpl(DefaultListSelectionModel.java:559) at javax.swing.DefaultListSelectionModel.clearSelection(DefaultListSelectionModel.java:403) at javax.swing.JTable.clearSelection(JTable.java:2080) at javax.swing.JTable.clearSelectionAndLeadAnchor(JTable.java:2088) at javax.swing.JTable.tableChanged(JTable.java:4433) at javax.swing.table.AbstractTableModel.fireTableChanged(AbstractTableModel.java:280) at javax.swing.table.AbstractTableModel.fireTableDataChanged(AbstractTableModel.java:182) at com.izforge.izpack.panels.PacksModel.setValueAt(Unknown Source) at com.izforge.izpack.panels.PacksPanelBase$1.mouseClicked(Unknown Source) at java.awt.AWTEventMulticaster.mouseClicked(AWTEventMulticaster.java:253) at java.awt.Component.processMouseEvent(Component.java:6377) at javax.swing.JComponent.processMouseEvent(JComponent.java:3267) at java.awt.Component.processEvent(Component.java:6139) at java.awt.Container.processEvent(Container.java:2085) at java.awt.Component.dispatchEventImpl(Component.java:4736) at java.awt.Container.dispatchEventImpl(Container.java:2143) at java.awt.Component.dispatchEvent(Component.java:4566) at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4621) at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4291) at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4212) at java.awt.Container.dispatchEventImpl(Container.java:2129) at java.awt.Window.dispatchEventImpl(Window.java:2478) at java.awt.Component.dispatchEvent(Component.java:4566) at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:680) at java.awt.EventQueue.access$000(EventQueue.java:86) at java.awt.EventQueue$1.run(EventQueue.java:639) at java.awt.EventQueue$1.run(EventQueue.java:637) at java.security.AccessController.doPrivileged(Native Method) at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:87) at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:98) at java.awt.EventQueue$2.run(EventQueue.java:653) at java.awt.EventQueue$2.run(EventQueue.java:651) at java.security.AccessController.doPrivileged(Native Method) at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:87) at java.awt.EventQueue.dispatchEvent(EventQueue.java:650) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:296) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:211) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:201) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:196) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:188) at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)