t>
<dd><code>W3CEndpointReference</code> from the accumulated
 properties set on this <code>W3CEndpointReferenceBuilder</code>
 instance. This method never returns <code>null</code>.</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalStateException.html?is-external=true" title="class or interface in java.lang">IllegalStateException</a></code> - <ul>
        <li>If the <code>address</code>, <code>serviceName</code> and
        