he added
code.</p>
<pre class="pre codeblock"><code>&lt;plugin id="com.example.addjar"&gt;
  &lt;feature extension="dita.conductor.lib.import" file="myJavaLibrary.jar"/&gt;
&lt;/plugin&gt;</code></pre>
<p class="p">Now assume that in this case myJavaLibrary.jar
performs some validation step in the middle of processing, and you
always want it to run immediately before the conref step. In that
case you need to make use of several features in this plug-in</p>
<ul class="ul"><li class="li">The JAR file must be 