I would do that the hacker way: - build the current TeX.jar - jar tf TeX.jar | grep whatever to get a list of to-be-renamed classes - use sed or manual editi

I would do that the hacker way: - build the current TeX.jar - jar tf TeX.jar | grep whatever to get a list of to-be-renamed classes - use sed or manual editing to generate a large list of recipes - run those recipes Instead of jar tf, grep for “^package foo.bar.baz” and “class (complex regex)” in the source code to get a list of package and class names, or use the directory structure. Maybe do all of them, and compare the results for robustness. That list will be large and it may not go perfect in one go, but it’s a one-off job, and you‘ll get there.