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<title>jarlib-display Task</title>
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<h2><a name="jarlib-display">jarlib-display</a></h2>
<h3>Description</h3>
<p>Display the "Optional Package" and "Package Specification" information
 contained within the specified jars.</p>

<p>Note that this task
works with extensions as defined by the "Optional Package" specification.
 For more information about optional packages, see the document
<em>Optional Package Versioning</em> in the documentation bundle for your
Java2 Standard Edition package, in file
<code>guide/extensions/versioning.html</code> or online at
<a href="http://java.sun.com/j2se/1.3/docs/guide/extensions/versioning.html">
http://java.sun.com/j2se/1.3/docs/guide/extensions/versioning.html</a>.</p>
<p>See the Extension and ExtensionSet documentation for further details</p>

<h3>Parameters</h3>
<table border="1" cellpadding="2" cellspacing="0">
  <tr>
    <td valign="top"><b>Attribute</b></td>
    <td valign="top"><b>Description</b></td>
    <td align="center" valign="top"><b>Required</b></td>
  </tr>
  <tr>
    <td valign="top">file</td>
    <td valign="top">The file to display extension information about.</td>
    <td valign="top" align="center">No, but one of file or fileset must be
    present.</td>
  </tr>
</table>
<h3>Parameters specified as nested elements</h3>

<h4>fileset</h4>
 <p><a href="../CoreTypes/fileset.html">FileSet</a>s contain list of files to
 display Extension information  about.</p>

<h3>Examples</h3>
<p><b>Display Extension info for a single file</b></p>
<pre>
  &lt;jarlib-display file=&quot;myfile.jar&quot;&gt;
</pre>

<p><b>Display Extension info for a fileset</b></p>
<pre>
  &lt;jarlib-display&gt;
    &lt;fileset dir="lib"&gt;
      &lt;include name="*.jar"/&gt;
    &lt;/fileset&gt;
  &lt;/jarlib-display&gt;
</pre>

<hr><p align="center">Copyright &copy; 2002 Apache Software Foundation.
All rights Reserved.</p>

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