Target -post-jar no se ejecuta cuando está en el script de compilación importado

I'm fairly new to netbeans and its build definition so what I'm trying to achieve may just not be possible ...

I'm developping several plugins using netbeans and I want all the jar files to be copied in a common directory after beeing generated.

I can do that with a <target name="-post-jar"> block in every build.xml file, but as there will be more common things to do in the future I want to put the copy instructions in a common file that will be included in every build.xml file of every plugin.

Aquí esta lo que hice :

Creé un movejar.xml file in the directory where all my projects are located (/home/xxx/dev/plugins) with this content :

<?xml version="1.0" encoding="UTF-8"?>
<project name="movejar" default="default" basedir=".">
    <target name="-post-jar">
        <property name="mcp.destpath" value="/home/xxx/dev/plugins" />
        <echo message="Moving ${dist.jar} to ${mcp.destpath}" />
        <copy file="${dist.jar}" flatten="true" todir="${mcp.destpath}" />
    </target>
</project>

Luego agregué un import instrucción para /home/xxx/dev/plugins/myplugin/build.xml :

<?xml version="1.0" encoding="UTF-8"?>
<project name="myplugin" default="default" basedir=".">
    <description>Builds, tests, and runs the project myplugin.</description>
    <import file="nbproject/build-impl.xml"/>
    <import file="../movejar.xml"/>
</project>

The import is fine because when I put a <echo>foo</echo> in movejar.xml (fuera del target section) it shows up in the compile log.

El problema es que -post-jar target is not executed at compile time (jar generation is enabled in project properties of course), the echo don't show up in the compile log and the jar file is not copied, no errors either ...

Algunas ideas ?