How do I unsign a jar?

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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.

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