Public bug reported:

Binary package hint: umlet

Oddly enough, it keeps running, but this happens on start-up, and can
hardly be a good sign:

mace:~$ umlet
java.lang.NullPointerException
        at javax.swing.text.html.StyleSheet.getRule(StyleSheet.java:211)
        at 
javax.swing.text.html.StyleSheet$ViewAttributeSet.<init>(StyleSheet.java:2693)
        at 
javax.swing.text.html.StyleSheet.getViewAttributes(StyleSheet.java:347)
        at 
javax.swing.text.html.ParagraphView.setPropertiesFromAttributes(ParagraphView.java:101)
        at javax.swing.text.html.ParagraphView.setParent(ParagraphView.java:77)
        at javax.swing.text.CompositeView.replace(CompositeView.java:217)
        at javax.swing.text.BoxView.replace(BoxView.java:181)
        at javax.swing.text.CompositeView.loadChildren(CompositeView.java:114)
        at javax.swing.text.CompositeView.setParent(CompositeView.java:139)
        at javax.swing.text.html.BlockView.setParent(BlockView.java:72)
        at 
javax.swing.text.html.HTMLEditorKit$HTMLFactory$BodyBlockView.setParent(HTMLEditorKit.java:1319)
        at javax.swing.text.CompositeView.replace(CompositeView.java:217)
        at javax.swing.text.BoxView.replace(BoxView.java:181)
        at javax.swing.text.CompositeView.loadChildren(CompositeView.java:114)
        at javax.swing.text.CompositeView.setParent(CompositeView.java:139)
        at javax.swing.text.html.BlockView.setParent(BlockView.java:72)
        at 
javax.swing.plaf.basic.BasicTextUI$RootView.setView(BasicTextUI.java:1333)
        at javax.swing.plaf.basic.BasicTextUI.setView(BasicTextUI.java:695)
        at javax.swing.plaf.basic.BasicTextUI.modelChanged(BasicTextUI.java:684)
        at 
javax.swing.plaf.basic.BasicTextUI$UpdateHandler.propertyChange(BasicTextUI.java:1809)
        at java.beans.PropertyChangeSupport.fire(PropertyChangeSupport.java:298)
        at 
java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:291)
        at 
java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:229)
        at java.awt.Component.firePropertyChange(Component.java:8118)
        at javax.swing.text.JTextComponent.setEditable(JTextComponent.java:1795)
        at com.umlet.gui.base.StartUpHelpText.showHTML(StartUpHelpText.java:76)
        at com.umlet.gui.base.StartUpHelpText.<init>(StartUpHelpText.java:31)
        at 
com.umlet.control.diagram.DiagramHandler.<init>(DiagramHandler.java:52)
        at 
com.umlet.control.diagram.DiagramHandler.<init>(DiagramHandler.java:41)
        at 
com.umlet.control.diagram.PaletteHandler.<init>(PaletteHandler.java:14)
        at com.umlet.control.Umlet.getPalettes(Umlet.java:279)
        at com.umlet.control.Umlet.getPaletteNames(Umlet.java:298)
        at com.umlet.gui.standalone.StandaloneGUI.init(StandaloneGUI.java:326)
        at com.umlet.gui.base.UmletGUI.initGUI(UmletGUI.java:58)
        at com.umlet.control.Umlet.init(Umlet.java:264)
        at com.umlet.control.Umlet.main(Umlet.java:239)

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: umlet 10.2-1
ProcVersionSignature: Ubuntu 2.6.32-30.59-generic 2.6.32.29+drm33.13
Uname: Linux 2.6.32-30-generic x86_64
Architecture: amd64
Date: Fri Apr  1 11:11:32 2011
InstallationMedia: Ubuntu 10.04.1 LTS "Lucid Lynx" - Release amd64 (20100816.1)
PackageArchitecture: all
ProcEnviron:
 PATH=(custom, user)
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
SourcePackage: umlet

** Affects: umlet (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug lucid

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https://bugs.launchpad.net/bugs/747135

Title:
  java.lang.NullPointerException

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