I had some rule which matched an expression in a catch block. Jackpot suggested
a replacement for the catch block body, but as usual also offered to completely
reformat the try block body. Among its suggestions was to change
Iterator<? extends Object> it = lookup.lookupAll(Object.class).iterator();
Iterator<Bound> it = lookup.lookupAll(Object.class).iterator();
which of course is not valid code.
The old Jackpot module is no longer maintained. There is a rewrite in progress at: http://bitbucket.org/jlahoda/jackpot30/wiki/Home