if (mInput.isOrIsExpandedFrom(id)) {
throwRecursionError(id);
}
WstxInputSource oldInput = mInput;
oldInput.saveContext(this);
// null, null -> no public or system ids
int xmlVersion = mDocXmlVersion;
// 05-Feb-2006, TSa: If xmlVersion not explicitly known, defaults to 1.0
if (xmlVersion == XmlConsts.XML_V_UNKNOWN) {
xmlVersion = XmlConsts.XML_V_10;