Package: weka
Version: 3.5.8+cup1-1
Severity: normal

Hello,

I ran into an issue trying to use the ArffViewer with the Debian packaging 
of weka.  The function works when I download the upstream zip of 3.5.8 and
run weka that way.  The Debian version produces a stack trace, which is 
attached.

Thank you,
Tony

-- System Information:
Debian Release: lenny/sid
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: i386 (i686)

Kernel: Linux 2.6.25.8 (SMP w/2 CPU cores; PREEMPT)
Locale: LANG=en_US, LC_CTYPE=en_US (charmap=ISO-8859-1)
Shell: /bin/sh linked to /bin/bash

Versions of packages weka depends on:
ii  java-wrappers                 0.1.6      wrappers for java executables
ii  openjdk-6-jre                 6b11-9     OpenJDK Java runtime, using Hotspo
ii  sun-java6-jre                 6-10-2     Sun Java(TM) Runtime Environment (

weka recommends no packages.

weka suggests no packages.

-- no debconf information
---Registering Weka Editors---
Exception in thread "AWT-EventQueue-0" java.lang.ExceptionInInitializerError
        weka.gui.ConverterFileChooser.<clinit>(Unknown Source)
        weka.gui.arffviewer.ArffViewerMainPanel.createPanel(Unknown Source)
        weka.gui.arffviewer.ArffViewerMainPanel.<init>(Unknown Source)
        weka.gui.Main$10.actionPerformed(Unknown Source)
        javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995)
        
javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318)
        
javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
        javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)
        javax.swing.AbstractButton.doClick(AbstractButton.java:357)
        
javax.swing.plaf.basic.BasicMenuItemUI.doClick(BasicMenuItemUI.java:1225)
        
javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(BasicMenuItemUI.java:1266)
        java.awt.Component.processMouseEvent(Component.java:6134)
        javax.swing.JComponent.processMouseEvent(JComponent.java:3265)
        java.awt.Component.processEvent(Component.java:5899)
        java.awt.Container.processEvent(Container.java:2023)
        java.awt.Component.dispatchEventImpl(Component.java:4501)
        java.awt.Container.dispatchEventImpl(Container.java:2081)
        java.awt.Component.dispatchEvent(Component.java:4331)
        java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4301)
        java.awt.LightweightDispatcher.processMouseEvent(Container.java:3965)
        java.awt.LightweightDispatcher.dispatchEvent(Container.java:3895)
        java.awt.Container.dispatchEventImpl(Container.java:2067)
        java.awt.Window.dispatchEventImpl(Window.java:2458)
        java.awt.Component.dispatchEvent(Component.java:4331)
        java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
        
java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
        
java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
        
java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
        java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
        java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
        java.awt.EventDispatchThread.run(EventDispatchThread.java:122)

        at weka.gui.ConverterFileChooser.<clinit>(Unknown Source)
        at weka.gui.arffviewer.ArffViewerMainPanel.createPanel(Unknown Source)
        at weka.gui.arffviewer.ArffViewerMainPanel.<init>(Unknown Source)
        at weka.gui.Main$10.actionPerformed(Unknown Source)
        at 
javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995)
        at 
javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318)
        at 
javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
        at 
javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)
        at javax.swing.AbstractButton.doClick(AbstractButton.java:357)
        at 
javax.swing.plaf.basic.BasicMenuItemUI.doClick(BasicMenuItemUI.java:1225)
        at 
javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(BasicMenuItemUI.java:1266)
        at java.awt.Component.processMouseEvent(Component.java:6134)
        at javax.swing.JComponent.processMouseEvent(JComponent.java:3265)
        at java.awt.Component.processEvent(Component.java:5899)
        at java.awt.Container.processEvent(Container.java:2023)
        at java.awt.Component.dispatchEventImpl(Component.java:4501)
        at java.awt.Container.dispatchEventImpl(Container.java:2081)
        at java.awt.Component.dispatchEvent(Component.java:4331)
        at 
java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4301)
        at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3965)
        at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3895)
        at java.awt.Container.dispatchEventImpl(Container.java:2067)
        at java.awt.Window.dispatchEventImpl(Window.java:2458)
        at java.awt.Component.dispatchEvent(Component.java:4331)
        at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
        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)
Caused by: java.lang.NullPointerException
        at weka.core.converters.ConverterUtils.<clinit>(Unknown Source)
        ... 31 more

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