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<h4>getRootClasses</h4>
<pre>protected&nbsp;java.util.Enumeration&lt;java.lang.String&gt;&nbsp;getRootClasses()</pre>
<div class="block">Get an enumeration of the root classes</div>
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<dt><span class="returnLabel">Returns:</span></dt>
<dd>an enumeration of Strings, each of which is a class name
         for a root class.</dd>
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