None critical error triggered on releasing key-combo [Shift-Ctrl-Alt] when a container(like a cupboard) is also open.

OS: Windows Xp
Java: 1.7.0.13
Client: autohaven.jnlp

Error message:
>Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
>	at sun.awt.SunToolkit.getWindowDeactivationTime(Unknown Source)
>	at com.sun.java.swing.plaf.windows.WindowsRootPaneUI$AltProcessor.altReleased(Unknown Source)
>	at com.sun.java.swing.plaf.windows.WindowsRootPaneUI$AltProcessor.postProcessKeyEvent(Unknown Source)
>	at java.awt.DefaultKeyboardFocusManager.dispatchKeyEvent(Unknown Source)
>	at java.awt.DefaultKeyboardFocusManager.preDispatchKeyEvent(Unknown Source)
>	at java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(Unknown Source)
>	at java.awt.DefaultKeyboardFocusManager.dispatchEvent(Unknown Source)
>	at java.awt.Component.dispatchEventImpl(Unknown Source)
>	at java.awt.Component.dispatchEvent(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.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
>	at java.awt.EventQueue$4.run(Unknown Source)
>	at java.awt.EventQueue$4.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)