Please see the attached java module representing a unit test for a jar class
loader that demonstrates the problem.


Some of the swing classes, for instance JTextComponent, store a static
exption. This is a problem because Throwable will construct an Object
containing a stack trace, which effectively prohibits any class on the call
chain from being garbage collected, including our ClassLoader which ultimately
leads to OutOfMemoryError's OUCH. Please use a new Throwable rather than static
Throwable. Thanks to the JDK1.2 hat tool to get to the bottom of this problem!

static final IllegalArgumentException illegalDocumentPosition =
        new IllegalArgumentException("Illegal document position");