null if the document
                 location cannot be reported during the parsing of 
                 the document DTD. However, it is <em>strongly</em>
                 recommended that a locator be supplied that can 
                 at least report the base system identifier of the
                 DTD.<DD><CODE>augmentations</CODE> - Additional information that may include infoset
                      augmentations.<DT><B>Throws:</B><DD><CODE><A HREF="../../../../org/apache/xerces/xni/XNIException.