Error message displayed while using LiveGPS. No problems when continued.

[captthe@…]

Path: trunk
URL: ​http://josm.openstreetmap.de/svn/trunk
Repository Root: ​http://josm.openstreetmap.de/svn
Repository UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Revision: 2255
Node Kind: directory
Last Changed Author: Gubaer
Last Changed Rev: 2255
Last Changed Date: 2009-10-07 21:25:15 +0200 (Wed, 07 Oct 2009)

Memory Usage: 93 MB / 506 MB (37 MB allocated, but free)
Java version: 1.6.0_15

Plugins: livegps
validator
wmsplugin
Plugin livegps Version: 16945
Plugin validator Version: 17722
Plugin wmsplugin Version: 17817

java.util.ConcurrentModificationException

at java.util.AbstractList$Itr.checkForComodification(AbstractList.java:372)
at java.util.AbstractList$Itr.next(AbstractList.java:343)
at org.openstreetmap.josm.data.gpx.GpxTrack.length(GpxTrack.java:21)
at org.openstreetmap.josm.gui.layer.GpxLayer.getToolTipText(GpxLayer.java:389)
at org.openstreetmap.josm.gui.dialogs.LayerListDialog$LayerListCellRenderer.getListCellRendererComponent(LayerListDialog.java:532)
at javax.swing.plaf.basic.BasicListUI.paintCell(BasicListUI.java:195)
at javax.swing.plaf.basic.BasicListUI.paintImpl(BasicListUI.java:304)
at javax.swing.plaf.basic.BasicListUI.paint(BasicListUI.java:227)
at javax.swing.plaf.ComponentUI.update(ComponentUI.java:155)
at javax.swing.JComponent.paintComponent(JComponent.java:763)
at javax.swing.JComponent.paint(JComponent.java:1029)
at javax.swing.JComponent.paintChildren(JComponent.java:864)
at javax.swing.JComponent.paint(JComponent.java:1038)
at javax.swing.JViewport.paint(JViewport.java:747)
at javax.swing.JComponent.paintChildren(JComponent.java:864)
at javax.swing.JComponent.paint(JComponent.java:1038)
at javax.swing.JComponent.paintChildren(JComponent.java:864)
at javax.swing.JComponent.paint(JComponent.java:1038)
at javax.swing.JComponent.paintChildren(JComponent.java:864)
at javax.swing.JComponent.paint(JComponent.java:1038)
at javax.swing.JComponent.paintChildren(JComponent.java:864)
at org.openstreetmap.josm.gui.MultiSplitPane.paintChildren(MultiSplitPane.java:205)
at javax.swing.JComponent.paint(JComponent.java:1038)
at javax.swing.JComponent.paintChildren(JComponent.java:864)
at javax.swing.JComponent.paint(JComponent.java:1038)
at javax.swing.JComponent.paintChildren(JComponent.java:864)
at javax.swing.JSplitPane.paintChildren(JSplitPane.java:1030)
at javax.swing.JComponent.paint(JComponent.java:1038)
at javax.swing.JComponent.paintChildren(JComponent.java:864)
at javax.swing.JComponent.paint(JComponent.java:1038)
at javax.swing.JComponent._paintImmediately(JComponent.java:5098)
at javax.swing.JComponent.paintImmediately(JComponent.java:4882)
at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:829)
at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:714)
at javax.swing.RepaintManager.seqPaintDirtyRegions(RepaintManager.java:694)
at javax.swing.SystemEventQueueUtilities$ComponentWorkRequest.run(SystemEventQueueUtilities.java:128)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:633)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:296)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:211)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:201)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:196)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:188)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)