bug window shows up after passing screensaver login (xp)

[katpatuka]

returning to open xp box and passing screensaver user login the open josm java windows throws this error:

bug window shows up after passing screensaver login (xp)

Repository Root: http://josm.openstreetmap.de/svn
Build-Date: 2013-06-05 01:34:49
Last Changed Author: Don-vip
Revision: 5990
Repository UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
URL: http://josm.openstreetmap.de/svn/trunk
Last Changed Date: 2013-06-05 00:52:58 +0200 (Wed, 05 Jun 2013)
Last Changed Rev: 5990

Identification: JOSM/1.5 (5990 en) Windows XP 32-Bit
Memory Usage: 197 MB / 494 MB (86 MB allocated, but free)
Java version: 1.7.0_25, Oracle Corporation, Java HotSpot(TM) Client VM
VM arguments: [-Xmx512m]
Dataset consistency test: No problems found

Plugin: ElevationProfile (29611)
Plugin: PicLayer (29601)
Plugin: download_along (29435)
Plugin: ext_tools (29435)
Plugin: geotools (29435)
Plugin: imagery_offset_db (29467)
Plugin: importvec (29435)
Plugin: jts (29613)
Plugin: mirrored_download (29505)
Plugin: multipoly-convert (29435)
Plugin: opendata (29505)
Plugin: pdfimport (29435)
Plugin: reverter (29627)
Plugin: tageditor (29435)
Plugin: utilsplugin2 (29615)
Plugin: waydownloader (29435)
Plugin: wikipedia (29523)

java.lang.NullPointerException
	at org.openstreetmap.josm.gui.widgets.JosmComboBox$ContextMenuHandler.enableMenu(JosmComboBox.java:220)
	at org.openstreetmap.josm.gui.widgets.JosmComboBox$ContextMenuHandler.propertyChange(JosmComboBox.java:213)
	at java.beans.PropertyChangeSupport.fire(Unknown Source)
	at java.beans.PropertyChangeSupport.firePropertyChange(Unknown Source)
	at java.beans.PropertyChangeSupport.firePropertyChange(Unknown Source)
	at java.awt.Component.firePropertyChange(Unknown Source)
	at javax.swing.JComboBox.setEditor(Unknown Source)
	at javax.swing.plaf.basic.BasicComboBoxUI.uninstallUI(Unknown Source)
	at com.sun.java.swing.plaf.windows.WindowsComboBoxUI.uninstallUI(Unknown Source)
	at javax.swing.JComponent.uninstallUIAndProperties(Unknown Source)
	at javax.swing.JComponent.setUI(Unknown Source)
	at javax.swing.JComboBox.setUI(Unknown Source)
	at javax.swing.JComboBox.updateUI(Unknown Source)
	at javax.swing.SwingUtilities.updateComponentTreeUI0(Unknown Source)
	at javax.swing.SwingUtilities.updateComponentTreeUI0(Unknown Source)
	at javax.swing.SwingUtilities.updateComponentTreeUI0(Unknown Source)
	at javax.swing.SwingUtilities.updateComponentTreeUI0(Unknown Source)
	at javax.swing.SwingUtilities.updateComponentTreeUI0(Unknown Source)
	at javax.swing.SwingUtilities.updateComponentTreeUI0(Unknown Source)
	at javax.swing.SwingUtilities.updateComponentTreeUI0(Unknown Source)
	at javax.swing.SwingUtilities.updateComponentTreeUI0(Unknown Source)
	at javax.swing.SwingUtilities.updateComponentTreeUI0(Unknown Source)
	at javax.swing.SwingUtilities.updateComponentTreeUI0(Unknown Source)
	at javax.swing.SwingUtilities.updateComponentTreeUI(Unknown Source)
	at com.sun.java.swing.plaf.windows.DesktopProperty.updateWindowUI(Unknown Source)
	at com.sun.java.swing.plaf.windows.DesktopProperty.updateWindowUI(Unknown Source)
	at com.sun.java.swing.plaf.windows.DesktopProperty.updateAllUIs(Unknown Source)
	at com.sun.java.swing.plaf.windows.DesktopProperty.access$000(Unknown Source)
	at com.sun.java.swing.plaf.windows.DesktopProperty$1.run(Unknown Source)
	at java.awt.event.InvocationEvent.dispatch(Unknown Source)
	at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
	at java.awt.EventQueue.access$200(Unknown Source)
	at java.awt.EventQueue$3.run(Unknown Source)
	at java.awt.EventQueue$3.run(Unknown Source)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
	at java.awt.EventQueue.dispatchEvent(Unknown Source)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
	at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
	at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.awt.EventDispatchThread.run(Unknown Source)