perty and uses
 that object as a key in the map. The resulting value is the value in the map that is associated with that key.
 </p>

 <p>
 This resolver can be constructed in read-only mode, which means that <a href="../../javax/el/MapELResolver.html#isReadOnly"><code>isReadOnly</code></a> will always return
 <code>true</code> and <a href="../../javax/el/MapELResolver.html#setValue-javax.el.ELContext-java.lang.Object-java.lang.Object-java.lang.Object-"><code>setValue(javax.el.ELContext, java.lang.Object, j