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bug#29700: Java packages need to retain references

From: Gábor Boskovits
Subject: bug#29700: Java packages need to retain references
Date: Fri, 15 Dec 2017 07:44:36 +0100

Do we know the impact of disabling compression?
I don't think it is really a big problem.
You are right with this, I'm still a bit stuck in another mindset, where we usually know, that we have only one version of a package...
If we later decide that compression is desired we can still go with a text file with references.
Anyway, do you think that extending the reference scanner would be a good idea?

2017-12-14 23:59 GMT+01:00 Ricardo Wurmus <address@hidden>:
Hi Gábor,

The manifest file would not be sufficient.  Take the example of
“java-usb4java”.  It provides a file “share/java/usb4java.jar”, which
contains this manifest:

--8<---------------cut here---------------start------------->8---
Manifest-Version: 1.0
Created-By: 1.7.0_161 (Oracle Corporation)

--8<---------------cut here---------------end--------------->8---

When you open the Loader.class file that is included in the archive you
will notice that it contains this string:


This reference is currently dropped because it cannot be detected in a
compressed archive.  The reference is not contained in the manifest, and
at build time we could only guess which references should be added to
the manifest.

Unless we extend the reference scanner to deal with compressed files I
think that disabling compression in jars is the best approach.

I’ll push this to master.


GPG: BCA6 89B6 3655 3801 C3C6  2150 197A 5888 235F ACAC

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