 can be specified on each method of a service endpoint interface.
 For such a method, the mapped operation in the generated WSDL's
 <code>wsam:Action</code> attribute on the WSDL <code>input</code>,
 <code>output</code> and <code>fault</code> messages of the WSDL <code>operation</code>
 is based upon which attributes of the <code>Action</code> annotation have been specified.
 For the exact computation of <code>wsam:Action</code> values for the messages, refer
 to the algorithm in the Jakarta XML Web Service