e added once per value. In case a single <code>null</code> value is
 entered, all parameters with that name in the current final path segment are removed (if present) from the collection
 of last segment matrix parameters inherited from the current target.
 <p>
 Note that the matrix parameters are tied to a particular path segment; appending a value to an existing matrix
 parameter name will not affect the position of the matrix parameter in the URI path.
 </p>
 <p>
 A snapshot of the present configuration 