Re: Ant and jar creation

On Thu, Nov 9, 2017 at 2:30 PM, RAPPAZ Francois <[email protected]>
wrote:

> I'm returning to some java projects that I left for some years. These
> projects use ant to compile, make  the doc and specially they use the
> external task genjar to build jar files.
>
> I spend some hours trying to have genjar working (I downloaded the source
> from sourceforge) and it's seems that the part of the code that try to read
> the class file does not work anymore. It's seems I'm hitting the end of the
> file when that was not expected.
>
> The most recent version of genjar is  1.0.2 and is more the ten years old.
>
> Does anyone know of a substitute ? I can use the jar task from ant, once I
> have a list of classes, but to build elegantly a jar without a list, genjar
> was great.
>
> Thanks for any suggestion !
>

Sounds like that very old GenJar custom task was never updated for newer
JDKs and new .class file formats?

The <depend> task almost does what you want I think, but doesn't expose a
Selector unfortunately.
But it looks like it has the code to do what you want, with an external
dependency to a .class file parser probably though.
(even GenJar had plans to use BCEL for that, but that probably never
materialized).

Once you have that depend-based selector, you can use <jar> almost like you
did <genjar> IMHO.

FWIW. Good luck, --DD

[1] https://ant.apache.org/manual/Tasks/depend.html
[2] https://ant.apache.org/manual/Types/selectors.html
[3]
http://ant.apache.org/manual/api/index.html?org/apache/tools/ant/util/depend/bcel/AncestorAnalyzer.html