NoClassDefFoundError: com/sun/java/accessibility/util/SwingEventMonitor

[Pete Brunet]

What is the correct way to fix this?

Exception in thread "AWT-EventQueue-0" java.lang.NoClassDefFoundError:
com/sun/java/accessibility/util/SwingEventMonitor
        at
sun.awt.windows.accessibility.AccessibleContextMirror.<init>(AccessibleContextMirror.java:583)

This class lives in jaccess-1_4.jar which I copy to lib\ext and is
documented here:
http://download.oracle.com/docs/cd/E17802_01/j2se/javase/technologies/accessibility/docs/jaccess-1.3/doc/api/com/sun/java/accessibility/util/package-summary.html

Since (as far as I know) this class isn't part of the OpenJDK I expected
javac to fail but it didn't (at least as far as the log shows):

...
# Java sources to be compiled: (listed in file
c:/OPF6CE~1/jdk7/build/WINDOW~2/tmp/sun/sun.awt/awt/.classes.list)
../../../src/windows/classes/sun/awt/windows/Accessibility/AccessibleContextMirror.java
# Running javac:
c:/OPF6CE~1/jdk7/build/WINDOW~2/J2SDK-~1/bin/javac
-J-XX:ThreadStackSize=768 -J-XX:-PrintVMOptions
-J-XX:+UnlockDiagnosticVMOptions -J-XX:-LogVMOutput -J-client -J-Xmx395m
-J-Xms128m -J-XX:PermSize=32m -J-XX:MaxPermSize=160m -source 7 -target 7
-encoding ascii -Xbootclasspath:c:/OPF6CE~1/jdk7/build/WINDOW~2/classes
-sourcepath
c:/OPF6CE~1/jdk7/build/WINDOW~2/gensrc;../../../src/windows/classes;../../../src/share/classes
-d c:/OPF6CE~1/jdk7/build/WINDOW~2/classes
@c:/OPF6CE~1/jdk7/build/WINDOW~2/tmp/sun/sun.awt/awt/.classes.list.filtered
/usr/bin/mkdir -p c:/OPF6CE~1/jdk7/build/WINDOW~2/tmp/sun/sun.awt/awt/obj
...

The source for SwingEventMonitor isn't in any of the three directories
in the -sourcepath.

What files should I provide and where should I put them, both for
compile time and run time?

Thanks, Pete