Right now I'm using this code

    <x:parse var="beansProject" xml="${f}" />
    <x:set var="configs" trim="true"
      select="$beansProject/beansProjectDescription/configs/config"/>

    <j:forEach var="infile" indexVar="i" items="${configs}">
      <j:if test="${i gt 0}">
        <j:set var="inputs" value="${inputs},"/>
      </j:if>
      <j:set var="inputs" value="${inputs}${infile.text}"/>
    </j:forEach>

But for my taste this is much too pedestrian.

Sure it's no very pretty. But I've searched for a "implode" php-like in Java, and there's not. You can create a java class with a static method which does it

I'm thinking we need a set of text manipulation set inluding such a feature
<implode source="${src}" var="dest" sep=","/>

Marc
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