To reproduce, create a DFS model and activate the cycle analysis tools. The following exception is thrown:
Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
at org.workcraft.plugins.dfs.tools.CycleAnaliserTool$CycleTableModel.getRowCount(CycleAnaliserTool.java:331)
at javax.swing.JTable.getRowCount(JTable.java:2661)
at javax.swing.plaf.basic.BasicTableUI.createTableSize(BasicTableUI.java:1686)
at javax.swing.plaf.basic.BasicTableUI.getPreferredSize(BasicTableUI.java:1727)
at javax.swing.JComponent.getPreferredSize(JComponent.java:1634)
at javax.swing.ScrollPaneLayout.preferredLayoutSize(ScrollPaneLayout.java:495)
at java.awt.Container.preferredSize(Container.java:1605)
at java.awt.Container.getPreferredSize(Container.java:1590)
at javax.swing.JComponent.getPreferredSize(JComponent.java:1636)
at java.awt.BorderLayout.preferredLayoutSize(BorderLayout.java:719)
at java.awt.Container.preferredSize(Container.java:1605)
at java.awt.Container.getPreferredSize(Container.java:1590)
at javax.swing.JComponent.getPreferredSize(JComponent.java:1636)
at javax.swing.JViewport.getViewSize(JViewport.java:1035)
at javax.swing.plaf.basic.BasicScrollPaneUI.syncScrollPaneWithViewport(BasicScrollPaneUI.java:282)
at javax.swing.plaf.basic.BasicScrollPaneUI$Handler.viewportStateChanged(BasicScrollPaneUI.java:1081)
at javax.swing.plaf.basic.BasicScrollPaneUI$Handler.stateChanged(BasicScrollPaneUI.java:1023)
at javax.swing.JViewport.fireStateChanged(JViewport.java:1401)
at javax.swing.JViewport.setView(JViewport.java:1007)
at javax.swing.JScrollPane.setViewportView(JScrollPane.java:1002)
at org.workcraft.gui.ToolInterfaceWindow.setTool(ToolInterfaceWindow.java:32)
at org.workcraft.gui.ToolboxPanel.selectTool(ToolboxPanel.java:179)
at org.workcraft.gui.ToolboxPanel$1.actionPerformed(ToolboxPanel.java:133)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2012)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2335)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:404)
at javax.swing.JToggleButton$ToggleButtonModel.setPressed(JToggleButton.java:308)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:252)
at java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:289)
at java.awt.Component.processMouseEvent(Component.java:6288)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3267)
at java.awt.Component.processEvent(Component.java:6053)
at java.awt.Container.processEvent(Container.java:2045)
at java.awt.Component.dispatchEventImpl(Component.java:4649)
at java.awt.Container.dispatchEventImpl(Container.java:2103)
at java.awt.Component.dispatchEvent(Component.java:4475)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4633)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4297)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4227)
at java.awt.Container.dispatchEventImpl(Container.java:2089)
at java.awt.Window.dispatchEventImpl(Window.java:2587)
at java.awt.Component.dispatchEvent(Component.java:4475)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:675)
at java.awt.EventQueue.access$300(EventQueue.java:96)
at java.awt.EventQueue$2.run(EventQueue.java:634)
at java.awt.EventQueue$2.run(EventQueue.java:632)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:108)
at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:119)
at java.awt.EventQueue$3.run(EventQueue.java:648)
at java.awt.EventQueue$3.run(EventQueue.java:646)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:108)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:645)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:275)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:200)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:190)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:185)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:177)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:138)
Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
at org.workcraft.plugins.dfs.tools.CycleAnaliserTool$CycleTableModel.getRowCount(CycleAnaliserTool.java:331)
at javax.swing.JTable.getRowCount(JTable.java:2661)
at javax.swing.plaf.basic.BasicTableUI.createTableSize(BasicTableUI.java:1686)
at javax.swing.plaf.basic.BasicTableUI.getPreferredSize(BasicTableUI.java:1727)
at javax.swing.JComponent.getPreferredSize(JComponent.java:1634)
at javax.swing.ScrollPaneLayout.layoutContainer(ScrollPaneLayout.java:788)
at java.awt.Container.layout(Container.java:1427)
at java.awt.Container.doLayout(Container.java:1416)
at java.awt.Container.validateTree(Container.java:1513)
at java.awt.Container.validate(Container.java:1486)
at javax.swing.RepaintManager$2.run(RepaintManager.java:679)
at javax.swing.RepaintManager$2.run(RepaintManager.java:677)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:108)
at javax.swing.RepaintManager.validateInvalidComponents(RepaintManager.java:676)
at javax.swing.RepaintManager$ProcessingRunnable.run(RepaintManager.java:1620)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:226)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:673)
at java.awt.EventQueue.access$300(EventQueue.java:96)
at java.awt.EventQueue$2.run(EventQueue.java:634)
at java.awt.EventQueue$2.run(EventQueue.java:632)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:108)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:643)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:275)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:200)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:190)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:185)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:177)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:138)
