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Subject: RE: Classpath Wildcards
Date: Thu, 26 Feb 2009 10:49:46 -0500
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From: "Murray, Mike" <mbm@ptc.com>
To: "Ant Users List" <user@ant.apache.org>
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I'm setting up a classpath for a forked <java>.  I understand how Ant
wildcards work.  I was previously using ant wildcards to define the
classpath, but the cmd line exceeds the windows limit when ${srclib} is
deep.

      <fileset dir=3D"${srclib}">
         <include name=3D"*/*.jar"/>

I want the classpath to include the literal string "wnc/*", which is a
valid java classpath element.  Since I used "pathelement path",
shouldn't it take this as a literal?  I think it does, except that it
appears to validating it, and throwing it out as non-existent.  I would
expect this validation with "pathelement location", but not "pathelement
path".

Thanks, Mike

-----Original Message-----
From: Jan.Materne@rzf.fin-nrw.de [mailto:Jan.Materne@rzf.fin-nrw.de]=20
Sent: Thursday, February 26, 2009 12:02 AM
To: user@ant.apache.org
Subject: AW: Classpath Wildcards

>I'm trying to use Java's Classpath wildcards to limit the cmd length on
>forked java calls.
>
>   <pathelement path=3D"${srclib}/wnc/*"/>=20


That's not a Java wildcard, it's an Ant wildcard.
Because <pathelement> is an Ant construct and Java wildcard can only be
used from the command line.


>But, Ant is throwing it out.
>  dropping L:\Windchill\srclib\wnc\* from path as it doesn't exist
>       [java] Executing 'D:\programs\jdk1.6.0_10\jre\bin\java.exe' with
arguments:
>Is there any way to do this?


Ant doesnt pass all found classfiles to the program - it sets up a
classloader. Therefore
it can handle large numbers of files itself.

So use an Ant wildcard:
  <pathelement path=3D"${srclib}/wnc/**"/>  =20
(add one star ;)

   '*'   every file in the directory
   '**'  every file somewhere under the directory


Jan

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