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<h2><a>ExtensionSet</a></h2>
<p>Utility type that represents a set of Extensions.</p>
<p>Note that this type
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://download.oracle.com/javase/1.3/docs/guide/extensions/versioning.html">
http://download.oracle.com/javase/1.3/docs/guide/extensions/versioning.html.</p>

<h3>Nested Elements</h3>

<h4>extension</h4>
<p><a href="extension.html">Extension</a> object to add to set.</p>

<h4>fileset</h4>
 <p><a href="../Types/fileset.html">FileSet</a>s all files contained
 contained within set that are jars and implement an extension are added
 to extension set.</p>

<h4>LibFileSet</h4>
 <p>All files contained contained within set that are jars and implement 
 an extension are added to extension set. However the extension information 
 may be modified by attributes of libfileset</p>

<h4>Examples</h4>
<blockquote><pre>
&lt;extension id=&quot;e1&quot;
    extensionName=&quot;MyExtensions&quot;
    specificationVersion=&quot;1.0&quot;
    specificationVendor=&quot;Peter Donald&quot;
    implementationVendorID=&quot;vv&quot;
    implementationVendor=&quot;Apache&quot;
    implementationVersion=&quot;2.0&quot;
    implementationURL=&quot;http://somewhere.com/myExt.jar&quot;/&gt;

&lt;libfileset id="lfs"
               includeUrl="true"
               includeImpl="false"
               dir="tools/lib"&gt;
  &lt;include name="*.jar"/&gt;
&lt;/libfileset&gt;

&lt;extensionSet id="exts"&gt;
  &lt;libfileset dir="lib"&gt;
    &lt;include name="*.jar"/&gt;
  &lt;/libfileset&gt;
  &lt;libfileset refid="lfs"/&gt;
  &lt;extension refid="e1"/&gt;
&lt;/extensionSet&gt;

</pre></blockquote>


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