The RI fails with JavaTest (2.4), test: api/javax_swing/interactive/JComboBoxTests.html, JComboBoxTest0004

How to reproduce:
See a list, press shift => get a null pointer exception for each time you press the key.


Output log:

Exception occurred during event dispatching:
java.lang.NullPointerException
 at javax.swing.JComboBox$DefaultKeySelectionManager.selectionForKey(JComboBox.java:1166)
 at javax.swing.JComboBox.selectWithKeyChar(JComboBox.java:991)
 at javax.swing.plaf.basic.BasicComboBoxUI$KeyHandler.keyPressed(BasicComboBoxUI.java:390)
 at java.awt.AWTEventMulticaster.keyPressed(AWTEventMulticaster.java:190)
 at java.awt.Component.processKeyEvent(Component.java:3677)
 at javax.swing.JComponent.processKeyEvent(JComponent.java:2014)
 at java.awt.Component.processEvent(Component.java:3553)
 at java.awt.Container.processEvent(Container.java:1164)
 at java.awt.Component.dispatchEventImpl(Component.java:2593)
 at java.awt.Container.dispatchEventImpl(Container.java:1213)
 at java.awt.Component.dispatchEvent(Component.java:2497)
 at java.awt.LightweightDispatcher.processKeyEvent(Container.java:2155)
 at java.awt.LightweightDispatcher.dispatchEvent(Container.java:2135)
 at java.awt.Container.dispatchEventImpl(Container.java:1200)
 at java.awt.Window.dispatchEventImpl(Window.java:926)
 at java.awt.Component.dispatchEvent(Component.java:2497)
 at java.awt.EventQueue.dispatchEvent(EventQueue.java:339)
 at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:131)
 at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:98)
 at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
 at java.awt.EventDispatchThread.run(EventDispatchThread.java:85)