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From adam kopecky <>
Subject Ant task with custom classpath?
Date Fri, 05 Jun 2009 08:59:35 GMT
Would it be possible to call Ant task with different classpath than the
one actual build is running with ?
Following should give you an idea:
<ant antfile="secondbuild.xml" target="run">
  <classpath><!-- this is not possible, but ilustrating the problem -->
    <pathelement location="ant-contrib.jar"/>
I have attempted to use taskdef to archieve this, but it does not seem
to work:
<path id="custom.classpath">
    <fileset dir="${env.ANT_HOME2}/lib">
      <include name="**/*.jar"/>
      <include name="**/**/*.jar"/>
      <pathelement location="ant-contrib.jar"/>
<taskdef name="runAnt"
This defines the task, but secondbuild.xml invoked with this new task
does not have access to tasks defined in 'custom.classpath'.
Is there any way to archive this ?
The motivation scenario is antscript used as an command interface
between two systems. Currently, they both have to use the same ant version and
Thanks for any hints.

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