| Unrolling included jars in a new jar file? | Unrolling included jars in a new jar file? 2003-03-28 - By Keith Hatton
Hi Sean,
When I said "describe the dependencies" I guess what I meant was "write the
<include> tags manually". I know that sounds like a pain, but that way you know
ahead of time exactly what the jar file should contain, rather than just "see
what happens" approach that you get with JBuilder. Our experience here is that
JBuilder is not very good at determining the real dependencies - it seems to
pick up lots of unnecessary files, plus of course it misses anything that's
reflection-based (where there is no dependency in the .class file), such as JCE
(security) etc.
Or, as you say, you can use the Class-Path entry in the manifest to point to
another JAR - you can specify a manifest file in the <jar> task or use the
nested <manifest> element. Often that's a good approach too, particularly when
you want to include something whose license is along the lines of "you can
distribute this stuff, but you must distribute it intact, no fiddling ..." - e
.g. JAF, JavaMail, ...
Anyhow, it sounds like you are away on this task and someone else has given you
a link to the <genjar> task too. Good luck!
Keith
-----Original Message-----
From: Sean Leblanc [mailto:SeanL@(protected)]
Sent: 27 March 2003 18:43
To: 'Ant Users List'
Subject: RE: Unrolling included jars in a new jar file?
Thanks, somehow I overlooked unjar. I think combining with jar, I can do
what I want.
I don't see genjar in the optional tasks in the manual. I guess I'm not
looking in the right spot.
When you say "it's better to describe the dependencies..." what does this
mean? Is this done using manifest(s)?
TIA,
Sean
-----Original Message-----
From: Keith Hatton [mailto:khatton@(protected)]
Sent: Thursday, March 27, 2003 10:10 AM
To: Ant Users List
Subject: RE: Unrolling included jars in a new jar file?
Yes, you need the <unjar> and <jar> tasks.
Also look at the <genjar> optional task.
But, one of the great things about Ant (IMHO) is that it doesn't duplicate
the behaviour of the jar builder in JBuilder! Our experience is that
JBuilder builds bloatware jars, it's much better to describe the
dependencies properly in the build file.
-----Original Message-----
From: Sean Leblanc [mailto:SeanL@(protected)]
Sent: 27 March 2003 17:03
To: 'user@(protected)'
Subject: Unrolling included jars in a new jar file?
Hi,
I'm trying to duplicate the behavior of the jar builder in Jbuilder. For
included jars, it un-jars the contents of included jars and zips, and puts
the contents in the target jar, along with your own classes. Is there a way
to do this with Ant?
Thanks,
Sean
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