ypes">Reference</a>&nbsp;reference)
              throws <a href="../../../../../../../org/apache/tools/ant/BuildException.html" title="class in org.apache.tools.ant">BuildException</a></pre>
<div class="block">Makes this instance in effect a reference to another ExtensionAdapter
 instance.

 <p>You must not set another attribute or nest elements inside
 this element if you make it a reference.</p></div>
<dl>
<dt><strong>Overrides:</strong></dt>
<dd><code><a href="../../../../../../../org/apache/tools/ant/t