(50/308) 396 - java.lang.NullPointerException in Vimulator(?)

sun java:
java version "1.4.2_05"
Java(TM) 2 Runtime Environment, Standard Edition (build
1.4.2_05-b04)
Java HotSpot(TM) Client VM (build 1.4.2_05-b04, mixed mode)

plattform:
suse linux 9.2

rep. the bug

1. install Vimulator.jar
2. click plugins => vi emulation
3. click plugins => vi emulation

error:
Warning: Cannot convert string
"-b&h-lucida-medium-r-normal-sans-\*-140-\*-\*-p-\*-iso8859-1"
to type FontStruct
\[error\] EditBus: Exception while sending message on
EditBus:
\[error\] EditBus:
java.lang.IncompatibleClassChangeError: Implementing class
\[error\] EditBus: at
java.lang.ClassLoader.defineClass0(Native Method)
\[error\] EditBus: at
java.lang.ClassLoader.defineClass(ClassLoader.java:539)
\[error\] EditBus: at
java.lang.ClassLoader.defineClass(ClassLoader.java:448)
\[error\] EditBus: at
org.gjt.sp.jedit.JARClassLoader._loadClass(JARClassLoader.java:325)
\[error\] EditBus: at
org.gjt.sp.jedit.JARClassLoader.loadClass(JARClassLoader.java:76)
\[error\] EditBus: at
java.lang.ClassLoader.loadClass(ClassLoader.java:235)
\[error\] EditBus: at
java.lang.ClassLoader.loadClassInternal(ClassLoader.java:302)
\[error\] EditBus: at
vimulator.VimulatorPlugin.handleMessage(VimulatorPlugin.java:64)
\[error\] EditBus: at
org.gjt.sp.jedit.EditBus.send(EditBus.java:148)
\[error\] EditBus: at
org.gjt.sp.jedit.jEdit.newView(jEdit.java:2186)
\[error\] EditBus: at
org.gjt.sp.jedit.PerspectiveManager$PerspectiveHandler.endElement(PerspectiveManager.java:344)
\[error\] EditBus: at
com.microstar.xml.XmlParser.parseETag(XmlParser.java:1041)
\[error\] EditBus: at
com.microstar.xml.XmlParser.parseContent(XmlParser.java:1112)
\[error\] EditBus: at
com.microstar.xml.XmlParser.parseElement(XmlParser.java:947)
\[error\] EditBus: at
com.microstar.xml.XmlParser.parseContent(XmlParser.java:1118)
\[error\] EditBus: at
com.microstar.xml.XmlParser.parseElement(XmlParser.java:947)
\[error\] EditBus: at
com.microstar.xml.XmlParser.parseDocument(XmlParser.java:496)
\[error\] EditBus: at
com.microstar.xml.XmlParser.doParse(XmlParser.java:176)
\[error\] EditBus: at
com.microstar.xml.XmlParser.parse(XmlParser.java:146)
\[error\] EditBus: at
org.gjt.sp.jedit.PerspectiveManager.loadPerspective(PerspectiveManager.java:81)
\[error\] EditBus: at
org.gjt.sp.jedit.jEdit$5.run(jEdit.java:3450)
\[error\] EditBus: at
java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:178)
\[error\] EditBus: at
java.awt.EventQueue.dispatchEvent(EventQueue.java:454)
\[error\] EditBus: at
java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:201)
\[error\] EditBus: at
java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:151)
\[error\] EditBus: at
java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:145)
\[error\] EditBus: at
java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:137)
\[error\] EditBus: at
java.awt.EventDispatchThread.run(EventDispatchThread.java:100)
\[error\] AWT-EventQueue-0: java.lang.NullPointerException
\[error\] AWT-EventQueue-0: at
org.gjt.sp.jedit.jEdit$3.invokeAction(jEdit.java:2910)
\[error\] AWT-EventQueue-0: at
org.gjt.sp.jedit.EditAction$Wrapper.actionPerformed(EditAction.java:216)
\[error\] AWT-EventQueue-0: at
javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1786)
\[error\] AWT-EventQueue-0: at
javax.swing.AbstractButton$ForwardActionEvents.actionPerformed(AbstractButton.java:1839)
\[error\] AWT-EventQueue-0: at
javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:420)
\[error\] AWT-EventQueue-0: at
javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:258)
\[error\] AWT-EventQueue-0: at
javax.swing.AbstractButton.doClick(AbstractButton.java:289)
\[error\] AWT-EventQueue-0: at
javax.swing.plaf.basic.BasicMenuItemUI.doClick(BasicMenuItemUI.java:1113)
\[error\] AWT-EventQueue-0: at
javax.swing.plaf.basic.BasicMenuItemUI$MouseInputHandler.mouseReleased(BasicMenuItemUI.java:943)
\[error\] AWT-EventQueue-0: at
java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:231)
\[error\] AWT-EventQueue-0: at
java.awt.Component.processMouseEvent(Component.java:5100)
\[error\] AWT-EventQueue-0: at
java.awt.Component.processEvent(Component.java:4897)
\[error\] AWT-EventQueue-0: at
java.awt.Container.processEvent(Container.java:1569)
\[error\] AWT-EventQueue-0: at
java.awt.Component.dispatchEventImpl(Component.java:3615)
\[error\] AWT-EventQueue-0: at
java.awt.Container.dispatchEventImpl(Container.java:1627)
\[error\] AWT-EventQueue-0: at
java.awt.Component.dispatchEvent(Component.java:3477)
\[error\] AWT-EventQueue-0: at
java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:3483)
\[error\] AWT-EventQueue-0: at
java.awt.LightweightDispatcher.processMouseEvent(Container.java:3198)
\[error\] AWT-EventQueue-0: at
java.awt.LightweightDispatcher.dispatchEvent(Container.java:3128)
\[error\] AWT-EventQueue-0: at
java.awt.Container.dispatchEventImpl(Container.java:1613)
\[error\] AWT-EventQueue-0: at
java.awt.Window.dispatchEventImpl(Window.java:1606)
\[error\] AWT-EventQueue-0: at
java.awt.Component.dispatchEvent(Component.java:3477)
\[error\] AWT-EventQueue-0: at
java.awt.EventQueue.dispatchEvent(EventQueue.java:456)
\[error\] AWT-EventQueue-0: at
java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:201)
\[error\] AWT-EventQueue-0: at
java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:151)
\[error\] AWT-EventQueue-0: at
java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:145)
\[error\] AWT-EventQueue-0: at
java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:137)
\[error\] AWT-EventQueue-0: at
java.awt.EventDispatchThread.run(EventDispatchThread.java:100)

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