Sparkplug strack trace

The following stack trace was reported by a Mac user:

Mar 30, 2007 9:20:08 PM org.jivesoftware.spark.util.log.Log error
SEVERE: Unable to find image for http://www.igniterealtime.org/updater/sparkplugs?filename=translator.jar
java.lang.NullPointerException
at javax.swing.ImageIcon.<init>(ImageIcon.java:161)
at org.jivesoftware.sparkimpl.plugin.viewer.SparkPlugUI.<init>(SparkPlugUI.java:65)
at org.jivesoftware.sparkimpl.plugin.viewer.PluginViewer$3.finished(PluginViewer.java:253)
at org.jivesoftware.spark.util.SwingWorker$2$1.run(SwingWorker.java:136)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:461)
at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:269)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:190)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:184)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:176)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:110)