[fedora-java] Re: Allowing Class-Path in MANIFEST.MF

[Mikolaj Izdebski]

On Thu, Oct 7, 2021 at 10:01 AM Didik Supriadi
<didiksupriadi41(a)fedoraproject.org&gt; wrote:
>  Well, I feel like this should be allowed in any case? I think most Devs
>  only add Class-Path manifest attribute when they need those particular
>  JAR to run their codes.
>
>  Or are there any cases beffore that this is not allowed? 
I don't know the reason for disallowing Class-Path. This rule existed
before I became a Fedora packager (year 2012). But I remember some
people used to have a strong opinion against Class-Path in Fedora
packages.

--
Mikolaj

>  On 10/7/21 13:45, Mikolaj Izdebski wrote:
>  > Hello,
>  >
>  > I would like to propose allowing Class-Path attribute in JAR
>  > manifests, at least in some cases.
>  >
>  > Currently Java Packaging Guidelines [1] forbids Class-Path attributes
>  > in JAR manifests. However there are certain cases when Class-Path can
>  > be very useful. One such example I find it useful for is executable
>  > JARs that can be symlinked from %{_libexecdir} and ran without a need
>  > for wrapper shell scripts. Such JAR files are marked as executable and
>  > start with a shebang line, which is treated as leading garbage and
>  > therefore ignored by JAR/ZIP readers. When such JARs have dependencies
>  > it's useful to be able to refer to them via Class-Path manifest
>  > attribute.
>  >
>  > What do you think about allowing Class-Path manifest attribute? Can it
>  > be allowed in any case, or in some cases only?
>  >
>  > [1] https://docs.fedoraproject.org/en-US/packaging-guidelines/Java/
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>  --
>  Regards,
>  Didik Supriadi (he/him)
>  https://getfedora.org
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