ull</code> value is passed, the effect is the same as calling the <a href="#removeProperty(java.lang.String)"><code>removeProperty(String)</code></a> method.
 </p>
 <p>
 In a Servlet container, the properties are synchronized with the <code>ServletRequest</code> and expose all the attributes
 available in the <code>ServletRequest</code>. Any modifications of the properties are also reflected in the set of
 properties of the associated <code>ServletRequest</code>.
 </p></div>
<dl class="notes">
<dt>Parameter