#12 FileNotFoundException not caught (patch included)

[David Smith]

Thanks for an excellent tool!

When I tried to use GenJar at first, I kept getting
BuildExceptions and the only error message was "Unable
to resolve MyClass.class". Really, however, what was
happening was a FileNotFoundException. The original
GenJar only caught IOException. This attached patch
will catch FileNotFoundException and provide the user
with a little more helpful output.

[David Smith]

Patch to add more specific error message when a file cannot be found.