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java.lang.NullPointerException: 	at oracle.as.install.engine.modules.presentation.ui.common.configtree.ConfigTreeCellRenderer.caluclateMaxWidth(ConfigTreeCellRenderer.java:270)	at oracle.as.install.engine.modules.presentation.ui.common.configtree.ConfigTreeCellRenderer.getTreeCellRendererComponent(ConfigTreeCellRenderer.java:204)	at javax.swing.plaf.basic.BasicTreeUI$NodeDimensionsHandler.getNodeDimensions(BasicTreeUI.java:2712)	at javax.swing.tree.AbstractLayoutCache.getNodeDimensions(AbstractLayoutCache.java:475)	at javax.swing.tree.VariableHeightLayoutCache$TreeStateNode.updatePreferredSize(VariableHeightLayoutCache.java:1342)	at javax.swing.tree.VariableHeightLayoutCache$TreeStateNode.getXOrigin(VariableHeightLayoutCache.java:1125)	at javax.swing.tree.VariableHeightLayoutCache$TreeStateNode.getNodeBounds(VariableHeightLayoutCache.java:1112)	at javax.swing.tree.VariableHeightLayoutCache.getBounds(VariableHeightLayoutCache.java:202)	at javax.swing.plaf.basic.BasicTreeUI.getPathBounds(BasicTreeUI.java:510)	at javax.swing.plaf.basic.BasicTreeUI.paint(BasicTreeUI.java:1173)	at javax.swing.plaf.ComponentUI.update(ComponentUI.java:143)	at javax.swing.JComponent.paintComponent(JComponent.java:752)	at javax.swing.JComponent.paint(JComponent.java:1029)	at java.awt.GraphicsCallback$PaintCallback.run(GraphicsCallback.java:21)	at sun.awt.SunGraphicsCallback.runOneComponent(SunGraphicsCallback.java:60)	at sun.awt.SunGraphicsCallback.runComponents(SunGraphicsCallback.java:97)	at java.awt.Container.paint(Container.java:1780)	at javax.swing.JComponent.paintChildren(JComponent.java:876)	at javax.swing.JComponent.paint(JComponent.java:1038)	at javax.swing.JComponent.paintChildren(JComponent.java:862)	at javax.swing.JComponent.paint(JComponent.java:1038)	at javax.swing.JViewport.paint(JViewport.java:747)	at javax.swing.JComponent.paintChildren(JComponent.java:862)	at javax.swing.JComponent.paint(JComponent.java:1038)	at javax.swing.JComponent.paintChildren(JComponent.java:862)	at oracle.bali.ewt.LWComponent.paintChildren(Unknown Source)	at javax.swing.JComponent.paint(JComponent.java:1038)	at javax.swing.JComponent.paintToOffscreen(JComponent.java:5124)	at javax.swing.RepaintManager$PaintManager.paintDoubleBuffered(RepaintManager.java:1491)	at javax.swing.RepaintManager$PaintManager.paint(RepaintManager.java:1422)	at javax.swing.RepaintManager.paint(RepaintManager.java:1225)	at javax.swing.JComponent._paintImmediately(JComponent.java:5072)	at javax.swing.JComponent.paintImmediately(JComponent.java:4882)	at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:786)	at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:714)	at javax.swing.RepaintManager.prePaintDirtyRegions(RepaintManager.java:694)	at javax.swing.RepaintManager.access$700(RepaintManager.java:41)	at javax.swing.RepaintManager$ProcessingRunnable.run(RepaintManager.java:1636)	at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)	at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:641)	at java.awt.EventQueue.access$000(EventQueue.java:84)	at java.awt.EventQueue$1.run(EventQueue.java:602)	at java.awt.EventQueue$1.run(EventQueue.java:600)	at java.security.AccessController.doPrivileged(Native Method)	at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:87)	at java.awt.EventQueue.dispatchEvent(EventQueue.java:611)	at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)	at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)	at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)