
 that have the <code>required</code> attribute set to <code>true</code>
 are understood and are being used.
 <p>
 The following describes the affects of this feature with respect
 to be enabled or disabled:
 <ul>
  <li> ENABLED: In this Mode, a Jakarta XML Web Services runtime MUST assure that all
  required <code>wsdl:binding</code> extensions(including policies) are
  either understood and used by the runtime, or explicitly disabled by the
  web service application. A web service can disable a particular