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From Steve Drach <>
Subject Re: jar update question
Date Fri, 28 Feb 2003 21:47:20 GMT

I have the exact same problem with "Apache Ant version 1.6alpha compiled
on February 28 2003."  This is on Solaris 2.8, so it doesn't seem like
it's been fixed.  Is there an open bug report on this?

-----Original Message-----
From: Dominique Devienne <>
Subject: jar update quesiton
Date: Fri, 31 Jan 2003 13:44:13 -0600
Content-Type: text/plain

Well known bug, to be fixed for Ant 1.5.2 and 1.6. Ant BugZilla is
littered with bug entries for the <jar update="true"> problem. Use a
nightly build of CVS were it's supposed to be 99% fixed. --DD

-----Original Message-----
From: Mark Smith []
Sent: Friday, January 31, 2003 1:21 PM
Subject: jar update quesiton


I've been looking through this newsgroup and couldn't find someone that
asked this particular question...  How do I use the <jar> task to update
a jar file when only a few files in it has been updated?

For example, when doing daily development, I compile my entire codebase,
then jar up a chunk of it for my applet/webstart stuff, then I start my
application, all within ant.  So for the <jar> task, I only want files
that have been updated to be updated to the jar.  I don't want the
entire jar file to be recreated.

I've played with the update and duplicate options in the <jar> task and
ran in --verbose mode but can't get the effect I'm looking for..  Seems
like no matter what I do, whenever a file is updated, the <jar> task
adds an entry for *every* file, not just the updated files.  Also, the
ant documentation does not state what the possible values are for the
"update" tag within the <jar> task.

Any help is greatly appreciated.


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