ejbjar ant1.4 weblogic 6.1 questions

[T Master <tm...@iknowledgeinc.com>]

The example below was taken from the ant1.4 beta2 manual.
Where is the weblogic.classes property defined?  Where should it be?


<ejbjar descriptordir="${dd.dir}" srcdir="${build.classes.server}">
       <include name="**/*-ejb-jar.xml"/>
       <exclude name="**/*-weblogic-ejb-jar.xml"/>
       <support dir="${build.classes.server}">
            <include name="**/*.class"/>
       </support>
       <weblogic destdir="${deployment.dir}"
                 keepgeneric="true"
                 suffix=".jar"
                 rebuild="false">
         <classpath>
            <pathelement path="${build.classes.server}"/>
         </classpath>
         <wlclasspath>
            <pathelement path="${weblogic.classes}"/>
         </wlclasspath>
       </weblogic>
    </ejbjar>


Another example had:
<dtd publicId="-//Sun Microsystems, Inc.//DTD Enterprise JavaBeans 1.1//EN"

location="${weblogic.home}/classes/weblogic/ejb/deployment/xml/ejb-jar.dtd"/
>
       <dtd publicId="-//BEA Systems, Inc.//DTD WebLogic 5.1.0 EJB//EN"

location="${weblogic.home}/classes/weblogic/ejb/deployment/xml/weblogic-ejb-
jar.dtd"/>

Where is the weblogic.home property defined?  Where should it be?

Trying to get my head around the ejbjar and ejbc ....

T Master.