e> instance
 can be created with extension elements, and attributes.
 <code>Provider</code> implementations must override the default
 implementation.

 <p>
 This method can be used to create a <code>W3CEndpointReference</code>
 for any endpoint by specifying the <code>address</code> property along
 with any other desired properties.  This method
 can also be used to create a <code>W3CEndpointReference</code> for
 an endpoint that is published by the same Jakarta EE application.
 To do so the <code>address<