[diffoscope] diffoscope (JVM bytecode) is not supported for Java 21

[Chris Lamb]

Hey Aman,

> Thanks for responding! I knew there was a problem with procyon but I 
> thought it was packaged with diffoscope. However, it is not. I manually 
> updated procyon to the latest release 
> <https://github.com/mstrobel/procyon/releases/tag/v0.6.0> as of today 
> and it does not throw an exception anymore.

Ah, that would explain it. And yes, you've got it right — diffoscope
doesn't bundle any tools itself, and instead relies on calling out to
other tools. It doesn't even ship "xxd", the tool it likes to use to
generate hexdumps!

Glad that we could get this solved for you.

Best wishes,

-- 
      o
    ⬋   ⬊      Chris Lamb
   o     o     reproducible-builds.org 💠
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