n the runtime configuration context.
 <p>
 Method returns <code>true</code> in case any instance of the <code>featureClass</code> class is
 already present among the features previously successfully enabled in the configuration
 context.
 </p></div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>featureClass</code> - a feature class to test for.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd><code>true</code> if a feature of a given class has been previously enabled in this