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After installation, I started up NetBeans IDE 3.5 for the first time and saw a messagebox titled "Unexpected Exception", whose details are listed as follows. java.lang.NullPointerException at javax.swing.text.html.ParagraphView.paint (ParagraphView.java:217) at javax.swing.text.html.TableView.paint (TableView.java:726) at javax.swing.text.BoxView.paintChild(BoxView.java:144) at javax.swing.text.BoxView.paint(BoxView.java:407) at javax.swing.text.html.BlockView.paint (BlockView.java:264) at javax.swing.text.BoxView.paintChild(BoxView.java:144) at javax.swing.text.BoxView.paint(BoxView.java:407) at javax.swing.text.html.TableView$RowView.paint (TableView.java:1360) at javax.swing.text.html.TableView.paint (TableView.java:726) at javax.swing.text.BoxView.paintChild(BoxView.java:144) at javax.swing.text.BoxView.paint(BoxView.java:407) at javax.swing.text.html.BlockView.paint (BlockView.java:264) at javax.swing.text.BoxView.paintChild(BoxView.java:144) at javax.swing.text.BoxView.paint(BoxView.java:407) at javax.swing.text.html.BlockView.paint (BlockView.java:264) at javax.swing.plaf.basic.BasicTextUI$RootView.paint (BasicTextUI.java:1318) at javax.swing.plaf.basic.BasicTextUI.paintSafely (BasicTextUI.java:635) at javax.swing.plaf.basic.BasicTextUI.paint (BasicTextUI.java:769) at javax.swing.plaf.basic.BasicTextUI.update (BasicTextUI.java:748) at javax.swing.JComponent.paintComponent (JComponent.java:541) at javax.swing.JComponent.paint(JComponent.java:808) at javax.swing.JComponent.paintChildren (JComponent.java:647) at javax.swing.JComponent.paint(JComponent.java:817) at javax.swing.JComponent.paintChildren (JComponent.java:647) at javax.swing.JComponent.paint(JComponent.java:817) at javax.swing.JViewport.paint(JViewport.java:707) at javax.swing.JComponent.paintChildren (JComponent.java:647) at javax.swing.JComponent.paint(JComponent.java:817) at javax.swing.JComponent.paintChildren (JComponent.java:647) at javax.swing.JComponent.paint(JComponent.java:817) at javax.swing.JComponent.paintChildren (JComponent.java:647) at javax.swing.JComponent.paint(JComponent.java:817) at org.netbeans.core.windows.frames.CloseButtonTabbedPane.paint (CloseButtonTabbedPane.java:209) at javax.swing.JComponent.paintChildren (JComponent.java:647) at javax.swing.JComponent.paint(JComponent.java:817) at org.netbeans.core.windows.frames.PerimeterPane.paint (PerimeterPane.java:103) at javax.swing.JComponent.paintChildren (JComponent.java:647) at javax.swing.JComponent.paint(JComponent.java:817) at javax.swing.JComponent.paintChildren (JComponent.java:647) at javax.swing.JComponent.paint(JComponent.java:817) at javax.swing.JLayeredPane.paint(JLayeredPane.java:552) at javax.swing.JComponent.paintChildren (JComponent.java:647) at javax.swing.JComponent.paint(JComponent.java:817) at javax.swing.JComponent.paintChildren (JComponent.java:647) at javax.swing.JComponent.paint(JComponent.java:817) at javax.swing.JComponent.paintChildren (JComponent.java:647) at javax.swing.JComponent.paint(JComponent.java:817) at javax.swing.JLayeredPane.paint(JLayeredPane.java:552) at org.netbeans.core.windows.frames.DesktopPane$CenterDesktopPane.paint (DesktopPane.java:427) at javax.swing.JComponent.paintChildren (JComponent.java:647) at javax.swing.JComponent.paint(JComponent.java:817) at javax.swing.JViewport.paint(JViewport.java:707) at javax.swing.JComponent.paintChildren (JComponent.java:647) at javax.swing.JComponent.paint(JComponent.java:817) at javax.swing.JComponent.paintWithOffscreenBuffer (JComponent.java:4771) at javax.swing.JComponent.paintDoubleBuffered (JComponent.java:4724) at javax.swing.JComponent._paintImmediately (JComponent.java:4668) at javax.swing.JComponent.paintImmediately (JComponent.java:4477) at javax.swing.RepaintManager.paintDirtyRegions (RepaintManager.java:410) [catch] at javax.swing.SystemEventQueueUtilities$ComponentWorkRequest.run (SystemEventQueueUtilities.java:117) at java.awt.event.InvocationEvent.dispatch (InvocationEvent.java:178) at java.awt.EventQueue.dispatchEvent(EventQueue.java:448) at java.awt.EventDispatchThread.pumpOneEventForHierarchy (EventDispatchThread.java:197) at java.awt.EventDispatchThread.pumpEventsForHierarchy (EventDispatchThread.java:150) at java.awt.EventDispatchThread.pumpEvents (EventDispatchThread.java:144) at java.awt.EventDispatchThread.pumpEvents (EventDispatchThread.java:136) at java.awt.EventDispatchThread.run (EventDispatchThread.java:99) This problem disappeared during the second startup.
This is an intermittent Swing HTML rendering bug - we've filed a JDK issue on it. *** This issue has been marked as a duplicate of 12907 ***
verified - it's duplicate.