.xml.soap">SOAPElement</a>&nbsp;addChildElement(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;localName,
                            <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;prefix)
                     throws <a href="../../../jakarta/xml/soap/SOAPException.html" title="class in jakarta.xml.soap">SOAPEx