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Date: Fri, 14 Jan 2005 15:15:20 -0800
From: Matthew Nelson <mnelson@mailsnare.net>
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To: user@ant.apache.org
Subject: Unions of PropertySets
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I'm having some difficulty creating unions of PropertySets for a series 
of subprojects in my build ... even when I copy the sample code directly 
from the Ant documentation! It just doesn't work. Am I doing something 
naively wrong, or is this a problem with Ant? A build script that 
demonstrates my problem is included below.

The only oddity worth noting is in the debug output. Just before 
creating each PropertySet reference, Ant outputs the following:

-----
Could not load a dependent class 
(com/sun/media/jai/codec/FileSeekableStream) for type image
Could not load a dependent class (com/jcraft/jsch/UserInfo) for type sshexec
Could not load a dependent class (com/jcraft/jsch/UserInfo) for type scp
Could not load class (org.apache.tools.ant.tasksdefs.cvslib.CvsVersion) 
for type cvsversion
-----

I'm using JDK 1.5.0 and Ant 1.6.2.

- Matthew

---------
build.xml
---------
<?xml version="1.0" encoding="UTF-8"?>

<project default="build">

   <property name="fooA" value="FooA"/>
   <property name="barB" value="BarB"/>

   <propertyset id="properties-starting-with-foo">
     <propertyref prefix="foo"/>
   </propertyset>
   <propertyset id="properties-starting-with-bar">
     <propertyref prefix="bar"/>
   </propertyset>
   <propertyset id="my-set">
     <propertyset refid="properties-starting-with-foo"/>
     <propertyset refid="properties-starting-with-bar"/>
   </propertyset>

   <target name="build">
     <ant dir="subproject" target="build" inheritAll="false">
       <propertyset refid="properties-starting-with-foo"/>
     </ant>
     <ant dir="subproject" target="build" inheritAll="false">
       <propertyset refid="properties-starting-with-bar"/>
     </ant>
     <ant dir="subproject" target="build" inheritAll="false">
       <propertyset refid="my-set"/>
     </ant>
   </target>

</project>

--------------------
subproject/build.xml
--------------------
<?xml version="1.0" encoding="UTF-8"?>

<project>

   <target name="build">
     <echo message="${fooA}"/>
     <echo message="${barB}"/>
   </target>

</project>

------
Output
------
$ ant
Buildfile: build.xml

build:

build:
      [echo] FooA
      [echo] ${barB}

build:
      [echo] ${fooA}
      [echo] BarB

build:
      [echo] ${fooA}
      [echo] ${barB}

BUILD SUCCESSFUL
Total time: 1 second

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