'[ jEdit-devel ] [Bug #108327] jedit user guide throws npe'

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List:       jedit-devel
Subject:    [ jEdit-devel ] [Bug #108327] jedit user guide throws npe
From:       noreply () sourceforge ! net
Date:       2000-06-26 9:26:04
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Bug #108327, was updated on 06/26/00 09:21
Here is a current snapshot of the bug.

Project: jEdit
Category: documentation
Status: Open
Resolution: None
Bug Group: minor bug
Priority: 5
Summary: jedit user guide throws npe

Details: Hi, 

When I open the jedit user guide more than once, it throws a NullPointerException. \
Here is the attached activity log.

[error] AWT-EventQueue-0: Exception occurred during event dispatching:
[error] AWT-EventQueue-0: java.lang.NullPointerException
[error] AWT-EventQueue-0: 	at \
javax.swing.text.html.StyleSheet.getRule(StyleSheet.java:182) [error] \
AWT-EventQueue-0: 	at \
javax.swing.text.html.StyleSheet$ViewAttributeSet.<init>(StyleSheet.java:2767) \
[error] AWT-EventQueue-0: 	at \
javax.swing.text.html.StyleSheet.getViewAttributes(StyleSheet.java:285) [error] \
AWT-EventQueue-0: 	at \
javax.swing.text.html.BlockView.setPropertiesFromAttributes(BlockView.java:314) \
[error] AWT-EventQueue-0: 	at \
javax.swing.text.html.BlockView.setParent(BlockView.java:59) [error] \
AWT-EventQueue-0: 	at \
javax.swing.plaf.basic.BasicTextUI$RootView.setView(BasicTextUI.java:1061) [error] \
AWT-EventQueue-0: 	at \
javax.swing.plaf.basic.BasicTextUI.setView(BasicTextUI.java:480) [error] \
AWT-EventQueue-0: 	at \
javax.swing.plaf.basic.BasicTextUI.modelChanged(BasicTextUI.java:468) [error] \
AWT-EventQueue-0: 	at \
javax.swing.plaf.basic.BasicTextUI$UpdateHandler.propertyChange(BasicTextUI.java:1518)
 [error] AWT-EventQueue-0: 	at \
javax.swing.event.SwingPropertyChangeSupport.firePropertyChange(SwingPropertyChangeSupport.java:153)
 [error] AWT-EventQueue-0: 	at \
javax.swing.JComponent.firePropertyChange(JComponent.java:3721) [error] \
AWT-EventQueue-0: 	at \
javax.swing.text.JTextComponent.setDocument(JTextComponent.java:660) [error] \
AWT-EventQueue-0: 	at javax.swing.JEditorPane.setEditorKit(JEditorPane.java:806) \
[error] AWT-EventQueue-0: 	at \
javax.swing.JEditorPane.setContentType(JEditorPane.java:732) [error] \
AWT-EventQueue-0: 	at javax.swing.JEditorPane.getStream(JEditorPane.java:561) [error] \
AWT-EventQueue-0: 	at javax.swing.JEditorPane.setPage(JEditorPane.java:320) [error] \
AWT-EventQueue-0: 	at org.gjt.sp.jedit.gui.HelpViewer.gotoURL(HelpViewer.java:142) \
[error] AWT-EventQueue-0: 	at \
org.gjt.sp.jedit.gui.HelpViewer.gotoURL(HelpViewer.java:57) [error] AWT-EventQueue-0: \
at org.gjt.sp.jedit.actions.help.actionPerformed(help.java:46) [error] \
AWT-EventQueue-0: 	at \
org.gjt.sp.jedit.gui.InputHandler.executeAction(InputHandler.java:228) [error] \
AWT-EventQueue-0: 	at \
org.gjt.sp.jedit.EditAction$Wrapper.actionPerformed(EditAction.java:238) [error] \
AWT-EventQueue-0: 	at \
javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1450) [error] \
AWT-EventQueue-0: 	at \
javax.swing.AbstractButton$ForwardActionEvents.actionPerformed(AbstractButton.java:1504)
 [error] AWT-EventQueue-0: 	at \
javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:378) \
[error] AWT-EventQueue-0: 	at \
javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:250) [error] \
AWT-EventQueue-0: 	at javax.swing.AbstractButton.doClick(AbstractButton.java:279) \
[error] AWT-EventQueue-0: 	at \
javax.swing.plaf.basic.BasicMenuItemUI$MouseInputHandler.mouseReleased(BasicMenuItemUI.java:886)
 [error] AWT-EventQueue-0: 	at \
java.awt.Component.processMouseEvent(Component.java:3717) [error] AWT-EventQueue-0: \
at java.awt.Component.processEvent(Component.java:3546) [error] AWT-EventQueue-0: 	at \
java.awt.Container.processEvent(Container.java:1164) [error] AWT-EventQueue-0: 	at \
java.awt.Component.dispatchEventImpl(Component.java:2595) [error] AWT-EventQueue-0: \
at java.awt.Container.dispatchEventImpl(Container.java:1213) [error] \
AWT-EventQueue-0: 	at java.awt.Component.dispatchEvent(Component.java:2499) [error] \
AWT-EventQueue-0: 	at \
java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:2451) [error] \
AWT-EventQueue-0: 	at \
java.awt.LightweightDispatcher.processMouseEvent(Container.java:2216) [error] \
AWT-EventQueue-0: 	at \
java.awt.LightweightDispatcher.dispatchEvent(Container.java:2125) [error] \
AWT-EventQueue-0: 	at java.awt.Container.dispatchEventImpl(Container.java:1200) \
[error] AWT-EventQueue-0: 	at java.awt.Window.dispatchEventImpl(Window.java:912) \
[error] AWT-EventQueue-0: 	at java.awt.Component.dispatchEvent(Component.java:2499) \
[error] AWT-EventQueue-0: 	at java.awt.EventQueue.dispatchEvent(EventQueue.java:319) \
[error] AWT-EventQueue-0: 	at \
java.awt.EventDispatchThread.pumpOneEvent(EventDispatchThread.java:103) [error] \
AWT-EventQueue-0: 	at \
java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93) [error] \
AWT-EventQueue-0: 	at java.awt.EventDispatchThread.run(EventDispatchThread.java:84) \
[error] AWT-EventQueue-0: Exception occurred during event dispatching: [error] \
AWT-EventQueue-0: java.lang.NullPointerException [error] AWT-EventQueue-0: 	at \
javax.swing.text.html.StyleSheet.getRule(StyleSheet.java:182) [error] \
AWT-EventQueue-0: 	at \
javax.swing.text.html.StyleSheet$ViewAttributeSet.<init>(StyleSheet.java:2767) \
[error] AWT-EventQueue-0: 	at \
javax.swing.text.html.StyleSheet.getViewAttributes(StyleSheet.java:285) [error] \
AWT-EventQueue-0: 	at \
javax.swing.text.html.BlockView.setPropertiesFromAttributes(BlockView.java:314) \
[error] AWT-EventQueue-0: 	at \
javax.swing.text.html.BlockView.setParent(BlockView.java:59) [error] \
AWT-EventQueue-0: 	at \
javax.swing.plaf.basic.BasicTextUI$RootView.setView(BasicTextUI.java:1061) [error] \
AWT-EventQueue-0: 	at \
javax.swing.plaf.basic.BasicTextUI.setView(BasicTextUI.java:480) [error] \
AWT-EventQueue-0: 	at \
javax.swing.plaf.basic.BasicTextUI.modelChanged(BasicTextUI.java:468) [error] \
AWT-EventQueue-0: 	at \
javax.swing.plaf.basic.BasicTextUI$UpdateHandler.propertyChange(BasicTextUI.java:1518)
 [error] AWT-EventQueue-0: 	at \
javax.swing.event.SwingPropertyChangeSupport.firePropertyChange(SwingPropertyChangeSupport.java:153)
 [error] AWT-EventQueue-0: 	at \
javax.swing.JComponent.firePropertyChange(JComponent.java:3721) [error] \
AWT-EventQueue-0: 	at \
javax.swing.text.JTextComponent.setDocument(JTextComponent.java:660) [error] \
AWT-EventQueue-0: 	at javax.swing.JEditorPane.setPage(JEditorPane.java:352) [error] \
AWT-EventQueue-0: 	at org.gjt.sp.jedit.gui.HelpViewer.gotoURL(HelpViewer.java:142) \
[error] AWT-EventQueue-0: 	at org.gjt.sp.jedit.gui.HelpViewer.ok(HelpViewer.java:164) \
[error] AWT-EventQueue-0: 	at \
org.gjt.sp.jedit.gui.EnhancedFrame$KeyHandler.keyPressed(EnhancedFrame.java:108) \
[error] AWT-EventQueue-0: 	at java.awt.Component.processKeyEvent(Component.java:3679) \
[error] AWT-EventQueue-0: 	at \
javax.swing.JComponent.processKeyEvent(JComponent.java:2092) [error] \
AWT-EventQueue-0: 	at java.awt.Component.processEvent(Component.java:3555) [error] \
AWT-EventQueue-0: 	at java.awt.Container.processEvent(Container.java:1164) [error] \
AWT-EventQueue-0: 	at java.awt.Component.dispatchEventImpl(Component.java:2595) \
[error] AWT-EventQueue-0: 	at \
java.awt.Container.dispatchEventImpl(Container.java:1213) [error] AWT-EventQueue-0: \
at java.awt.Component.dispatchEvent(Component.java:2499) [error] AWT-EventQueue-0: \
at java.awt.LightweightDispatcher.processKeyEvent(Container.java:2155) [error] \
AWT-EventQueue-0: 	at \
java.awt.LightweightDispatcher.dispatchEvent(Container.java:2135) [error] \
AWT-EventQueue-0: 	at java.awt.Container.dispatchEventImpl(Container.java:1200) \
[error] AWT-EventQueue-0: 	at java.awt.Window.dispatchEventImpl(Window.java:912) \
[error] AWT-EventQueue-0: 	at java.awt.Component.dispatchEvent(Component.java:2499) \
[error] AWT-EventQueue-0: 	at java.awt.EventQueue.dispatchEvent(EventQueue.java:319) \
[error] AWT-EventQueue-0: 	at \
java.awt.EventDispatchThread.pumpOneEvent(EventDispatchThread.java:103) [error] \
AWT-EventQueue-0: 	at \
java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93) [error] \
AWT-EventQueue-0: 	at java.awt.EventDispatchThread.run(EventDispatchThread.java:84)

For detailed info, follow this link:
http://sourceforge.net/bugs/?func=detailbug&bug_id=108327&group_id=588


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