public class NamespaceConstants {
// Public Constructors
    public NamespaceConstants(  ); 
// Public Constants
    public static final String NSPREFIX_SCHEMA_XSD;
               // ="xsd"
    public static final String NSPREFIX_SCHEMA_XSI;
               // ="xsi"
    public static final String NSPREFIX_SOAP_ENCODING;
               // ="soapenc"
    public static final String NSPREFIX_SOAP_ENVELOPE;
               // ="soapenv"
    public static final String NSURI_SCHEMA_XSD;
               // ="http://www.w3.org/2001/XMLSchema"
    public static final String NSURI_SCHEMA_XSI;
               // ="http://www.w3.org/2001/XMLSchema-instance"
    public static final String NSURI_SOAP_ENCODING;
               // ="http://schemas.xmlsoap.org/soap/encoding/"
    public static final String NSURI_SOAP_ENVELOPE;
               // ="http://schemas.xmlsoap.org/soap/envelope/"
    public static final String NSURI_SOAP_NEXT_ACTOR;
               // ="http://schemas.xmlsoap.org/soap/actor/next"
}

The NamespaceConstants class contains symbolic names that map to several well-known XML namespaces that are used by the JAX-RPC implementation. This may be useful to application code that needs to directly create or manipulate XML fragments passed to and from JAX-RPC method calls.