JFCUnit

I receive an ArrayIndexOutOfBoundsException from the following in a
subclass of JFCTestCase:

getHelper.sendKeyAction(new KeyEventData(this, ajtable, KeyEvent.VK_LEFT,
java.awt.Toolkit.getDefaultToolkit().getMenuShortcutKeyMask()));

The exception is thrown at
TestHelper.adjustModifiers(TestHelper.java:1271)

System Mac OS X 10.3
java version "1.4.2_12"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2_12-270)
Java HotSpot(TM) Client VM (build 1.4.2-70, mixed mode)