Question

Is there a way to unsign a java jar file? I have some signed jars I’m trying to use in my development environment, but I get security exceptions, so I want to unsign those jars and I can sign them later when I’m ready to deploy.

Answer 1

I don’t know the answer, but here is what I would do:

1. Unzip the jar file or files in question (jars are just zips)
2. Look in the META-INF directory for something that was not MANIFEST-MF.
3. Delete that stuff.
4. Open the MANIFEST-MF and remove stuff that looked like it was signature related.
5. rejar.