Since it's a VerifyError, it looks like your class file is corrupted.
Either your compiler is broken or there's some problems in a class file
(like you ftp-ed your class file with ASCII mode, for example)
Try different compilers if you can. javac, jikes, or kjc. Or check if
your class files are intact.
--
Kohsuke Kawaguchi <kohsuke.kawaguchi_at_sun.com>