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From "William Ferguson" <>
Subject RE: [Bug} jar Task
Date Wed, 06 Sep 2000 07:02:05 GMT
But it also means that you can never add a file to an existing jar, if
the file happens to a have timestamp earlier than that of the jar.
%JAVA_HOME%/bin/jar doesn't work this way.

William Ferguson

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> -----Original Message-----
> From: Stefan Bodewig []
> Sent: Wednesday, 6 September 2000 16:55
> To:
> Subject: Re: [Bug} jar Task
> >>>>> "WF" == William Ferguson <> writes:
>  WF> It seems that the jar task doesn't like adding a new file to an
>  WF> existing jar.
> The <zip>, <tar> and <jar> task all try to determine whether they need
> to do anything based on the timestamps of the archive to create and
> the timestamps of the files to add.
> If your archive already exists, you won't be able to add a file (by
> means of Ant) that is older than the archive. This is intended
> behavior because everything else would mean you'd have to look into
> the archive to retrieve the timestamps of the files within - which is
> rather costly.
> Stefan

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