Such a beast would be hard to develop... Think about preprocessor,
enumerations, typedefs, templates, exceptions (ok, they do exist in
both languages - but you don't need to declare them in c++), pointers
(and pointer-arithmetics), ...
And how about the different libraries? Standard includes? I've
never seen a STL in Java (without templates...), for example.

Forget it ;-)

Jelle

You may try Alma.
http://www.memoire.com/guillaume-desnoix/alma/

No preprocessor, you have to use cpp before. And only language
translation (no lib). Anyway it was usefull on some projects.

Why are you converting?

If you want something written in idiomatic Java, easy to maintain,
fast, small etc. then there is a good chance you will want to redesign
the app to suit Java's class libraries and Java's way of doing things.

You can farm that work out. I do it on a fixed contract basis.  So do
thousands of programmers in India.  This is very safe work to farm
out.  It is abundantly clear what the program is supposed to do.

If you just need something in a hurry, with no budget, that will let
you get your product working on a new platform, then perhaps the
automated tools will be helpful.

--
Canadian Mind Products, Roedy Green.
Coaching, problem solving, economical contract programming.
See http://mindprod.com/jgloss/jgloss.html for The Java Glossary.