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
Closing that outdated report as EOL has been reached long time ago