java.lang.NullPointerException
   at org.nbheaven.sqe.tools.pmd.codedefects.core.option.RuleCellRenderer.getTableCellRendererComponent(RuleCellRenderer.java:33)
   at javax.swing.JTable$AccessibleJTable.getAccessibleChild(JTable.java:7032)
   at javax.swing.JTable$AccessibleJTable.getAccessibleAt(JTable.java:7419)
   at javax.swing.JTable$AccessibleJTable.valueChanged(JTable.java:6932)
   at javax.swing.DefaultListSelectionModel.fireValueChanged(DefaultListSelectionModel.java:167)
   at javax.swing.DefaultListSelectionModel.fireValueChanged(DefaultListSelectionModel.java:147)
   at javax.swing.DefaultListSelectionModel.fireValueChanged(DefaultListSelectionModel.java:194)
   at javax.swing.DefaultListSelectionModel.changeSelection(DefaultListSelectionModel.java:388)
   at javax.swing.DefaultListSelectionModel.changeSelection(DefaultListSelectionModel.java:398)
   at javax.swing.DefaultListSelectionModel.removeSelectionIntervalImpl(DefaultListSelectionModel.java:559)
   at javax.swing.DefaultListSelectionModel.clearSelection(DefaultListSelectionModel.java:403)
   at javax.swing.JTable.clearSelection(JTable.java:2079)
   at javax.swing.JTable.clearSelectionAndLeadAnchor(JTable.java:2087)
   at javax.swing.JTable.tableChanged(JTable.java:4367)
   at javax.swing.JTable.setModel(JTable.java:3685)
   at org.nbheaven.sqe.tools.pmd.codedefects.core.option.ConfigureRulesPanel.fillTable(ConfigureRulesPanel.java:90)
   at org.nbheaven.sqe.tools.pmd.codedefects.core.option.ConfigureRulesPanel.setSettings(ConfigureRulesPanel.java:51)
   at org.nbheaven.sqe.tools.pmd.codedefects.core.option.PMDPanel.load(PMDPanel.java:48)
   at org.nbheaven.sqe.tools.pmd.codedefects.core.option.PMDOptionsPanelController.update(PMDOptionsPanelController.java:34)
   at org.netbeans.modules.options.TabbedController.update(TabbedController.java:119)
   at org.netbeans.modules.options.CategoryModel$Category.update(CategoryModel.java:375)
   at org.netbeans.modules.options.OptionsPanel.setCurrentCategory(OptionsPanel.java:179)
   at org.netbeans.modules.options.OptionsPanel.initCurrentCategory(OptionsPanel.java:138)
   at org.netbeans.modules.options.OptionsDisplayerImpl.showOptionsDialog(OptionsDisplayerImpl.java:189)
   at org.netbeans.api.options.OptionsDisplayer$1.run(OptionsDisplayer.java:143)
   at org.netbeans.api.options.OptionsDisplayer$1.run(OptionsDisplayer.java:130)
   at org.openide.util.Mutex.doEventAccess(Mutex.java:1355)
   at org.openide.util.Mutex.readAccess(Mutex.java:268)
   at org.netbeans.api.options.OptionsDisplayer.openImpl(OptionsDisplayer.java:130)
   at org.netbeans.api.options.OptionsDisplayer.open(OptionsDisplayer.java:117)
   at org.netbeans.api.options.OptionsDisplayer.open(OptionsDisplayer.java:89)
   at org.netbeans.modules.options.OptionsWindowAction.actionPerformed(OptionsWindowAction.java:60)
   at org.netbeans.modules.applemenu.NbApplicationAdapter.performAction(NbApplicationAdapter.java:175)
   at org.netbeans.modules.applemenu.NbApplicationAdapter.performAction(NbApplicationAdapter.java:161)
   at org.netbeans.modules.applemenu.NbApplicationAdapter.handlePreferences(NbApplicationAdapter.java:145)
   at com.apple.eawt.Application$5.run(Application.java:455)
   at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
   at java.awt.EventQueue.dispatchEvent(EventQueue.java:633)
   at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:125)
   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)