stax xml stream Location immutablelocation location fcharacteroffset fcolumnnumber fpublicid fsystemid immutablelocation location location location.getcharacteroffset location.getcolumnnumber location.getlinenumber location.getpublicid location.getsystemid immutablelocation characteroffset columnnumber linenumber publicid systemid fcharacteroffset characteroffset fcolumnnumber columnnumber linenumber fpublicid publicid fsystemid systemid getcharacteroffset fcharacteroffset getcolumnnumber fcolumnnumber getpublicid fpublicid getsystemid fsystemid