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From "Elankath, Tarun (Cognizant)" <>
Subject RE: changing JAVA_HOME dynamically
Date Sat, 30 Nov 2002 07:36:51 GMT
Count me in.. even I am facing the problem of requiring multiple JDK's for

I haven't tried it as yet, but I am going to use the executable attribute of
the javac task and see if things work ok. Will let you know if stuff works

-----Original Message-----
From: John Lindwall []
Sent: Saturday, November 30, 2002 7:01 AM
To: 'Ant Users List'
Subject: RE: changing JAVA_HOME dynamically

I've got the same issue!

I've got a top-level build.xml that builds a project that requires jdk 1.3
for compiling.  This works fine.  I'd like this top-level build.xml to
invoke a child build.xml that builds a project that requires jdk 1.4.1 for
JAVA_HOME for the build environment is set to the 1.3 JDK so the top-level
build uses 1.3 as expected.  The child build fails since it uses JDK 1.4
features and ant is using JDK 1.3 for the compiles.
How can I force the child build to use JDK 1.4?
Here's the target in the parent build.xml that invokes the child build.xml.
  <target name="build-oe" depends="init" description="Executes the build for
OE" >
    <ant dir="oe" antfile="build.xml" target="build" inheritall="false"  />

-----Original Message-----
From: Euan Guttridge []
Sent: Thursday, November 28, 2002 5:05 AM
To: ''
Subject: changing JAVA_HOME dynamically

I have two Ant builds. One requires JDK1.3.1 and the other JDK1.2.1. Is
there a way to change the JAVA_HOME from within the Ant scripts? I'd like
avoid writing a shell script just to do this..

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