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aspmx1.migadu.com; dkim=fail ("headers rsa verify failed") header.d=lepiller.eu header.s=dkim header.b=HHxe+Wfm; dmarc=fail reason="SPF not aligned (relaxed)" header.from=lepiller.eu (policy=none); spf=pass (aspmx1.migadu.com: domain of "bug-guix-bounces+larch=yhetil.org@gnu.org" designates 209.51.188.17 as permitted sender) smtp.mailfrom="bug-guix-bounces+larch=yhetil.org@gnu.org" X-Migadu-Spam-Score: 7.78 Authentication-Results: aspmx1.migadu.com; dkim=fail ("headers rsa verify failed") header.d=lepiller.eu header.s=dkim header.b=HHxe+Wfm; dmarc=fail reason="SPF not aligned (relaxed)" header.from=lepiller.eu (policy=none); spf=pass (aspmx1.migadu.com: domain of "bug-guix-bounces+larch=yhetil.org@gnu.org" designates 209.51.188.17 as permitted sender) smtp.mailfrom="bug-guix-bounces+larch=yhetil.org@gnu.org" X-Migadu-Queue-Id: 943998FAD X-Spam-Score: 7.78 X-Migadu-Scanner: scn0.migadu.com X-TUID: iY+3L38SZjpn ------FHR7Q35IJFHC6V3UD3MPIE1WZ4AN31 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Hi, replying to a few emails at once=2E The ant-build-system uses zip -0 to produce an uncompressed archive=2E By = default, jar produces a compressed one, so there's a repack phase for that: http://git=2Esavannah=2Enongnu=2Eorg/cgit/guix=2Egit/tree/guix/build/ant-= build-system=2Escm#n226 Embedding the classpath in the manifest is possible but would not have the= expected effect=2E That's because a line in the manifest cannot exceed 72 = bytes (see "line length" in https://docs=2Eoracle=2Ecom/javase/8/docs/techn= otes/guides/jar/jar=2Ehtml#Notes_on_Manifest_and_Signature_Files), so the c= lasspath will look like: Class-Path: =2E=2E/=2E=2E/=2E=2E/1234567891011 1213141516/share/java/foo=2Ejar Although java would read that fine, the grafter will not see it, nor be ab= le to graft foo in a meaningful manner: java would still use the ungrafted = version even if another file references foo=2E Le 18 octobre 2022 16:56:01 GMT+02:00, Maxim Cournoyer a =C3=A9crit=C2=A0: >Hello, > >Maxim Cournoyer writes: > >> Tobias Geerinckx-Rice writes: > >[=2E=2E=2E] > >>> Groan=2E Which package(s) compress =2Ejars? >> >> Oh, aren't they all? I hadn't realized =2Ejar compression was optional= =2E > >Actually, reading [0] again, it seems a JAR *is* a zip archive, so >cannot be either compressed or uncompressed=2E > >[0] https://docs=2Eoracle=2Ecom/en/java/javase/19/docs/specs/jar/jar=2Eh= tml > >--=20 >Thanks, >Maxim ------FHR7Q35IJFHC6V3UD3MPIE1WZ4AN31 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable Hi, replying to a few emails at once=2E

The= ant-build-system uses zip -0 to produce an uncompressed archive=2E By defa= ult, jar produces a compressed one, so there's a repack phase for that:
= http://git=2Esavannah=2Enongnu=2Eorg/cgi= t/guix=2Egit/tree/guix/build/ant-build-system=2Escm#n226

Embeddi= ng the classpath in the manifest is possible but would not have the expecte= d effect=2E That's because a line in the manifest cannot exceed 72 bytes (s= ee "line length" in http= s://docs=2Eoracle=2Ecom/javase/8/docs/technotes/guides/jar/jar=2Ehtml#Notes= _on_Manifest_and_Signature_Files), so the classpath will look like:
=
Class-Path: =2E=2E/=2E=2E/=2E=2E/1234567891011
1213141516/share/jav= a/foo=2Ejar

Although java would read that fine, the grafter will not= see it, nor be able to graft foo in a meaningful manner: java would still = use the ungrafted version even if another file references foo=2E

Le 18 octobre 2022 16:56:01 GMT+02:00, Maxim Courno= yer <maxim=2Ecournoyer@gmail=2Ecom> a =C3=A9crit=C2=A0:
Hello,

Maxim Cournoyer <maxim=
=2Ecournoyer@gmail=2Ecom> writes:

Tobias Geerinckx-Rice <me@tobias=2Egr> writes:
<=
/blockquote>
[=2E=2E=2E]

Groan=2E  Which=
 package(s) compress =2Ejars?

 Oh, aren't they all?  I =
hadn't realized =2Ejar compression was optional=2E

Actu=
ally, reading [0] again, it seems a JAR *is* a zip archive, so
cannot be=
 either compressed or uncompressed=2E

[0]  https://docs=
=2Eoracle=2Ecom/en/java/javase/19/docs/specs/jar/jar=2Ehtml

-- 
Thanks,
Maxim
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