Re: Jar task: --module-version and --main-class options

As requested, I've created a new issue. Is there some reason why Ant 
does not use the JDK's jar tool?

Bruce

[1] https://bz.apache.org/bugzilla/show_bug.cgi?id=62789

On 10/02/2018 12:20 AM, Stefan Bodewig wrote:
> On 2018-10-01, Bruce Alspaugh wrote:
> 
>> Java 9 and later add several new options to the jar tool:
> 
>> https://docs.oracle.com/en/java/javase/11/tools/jar.html
> 
>> I would like to use the --module-version and --main-class options with
>> Ant's Jar task, but I could not find them in the manual:
> 
>> https://ant.apache.org/manual/Tasks/jar.html
> 
>> I can accomplish this using exec, but it would be simpler if I could
>> use those options with the jar task. Can those two options be added?
> 
> I think there already is a Bugzilla enhancement request for --main-class
> but none for --module-version. Can you either please update the existing
> ticket[1] or add a new one for the second part?
> 
> As for "can it be done?": of course, but it may be a bit more difficult
> than you think. Ant does not use the JDK's jar tool at all but rather
> builds the jar by itself (that's just a ZIP with some extra contents,
> after all). So we'll need to figure out from the docs what those
> switches actually do and mimic the outcome.
> 
> Stefan
> 
> [1] https://bz.apache.org/bugzilla/show_bug.cgi?id=62772
> 
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