stax events io io xml stream Location xml stream XMLStreamException xml stream events StartDocument startdocumentimpl xmleventimpl startdocument fcharencoding fencodingset fversion fisstandalone fstandaloneset startdocumentimpl charencoding encodingset isstandalone standaloneset version location location start_document location fcharencoding charencoding fencodingset encodingset fisstandalone isstandalone fstandaloneset standaloneset fversion version getsystemid getlocation getsystemid getcharacterencodingscheme fcharencoding encodingset fencodingset isstandalone fisstandalone standaloneset fstandaloneset getversion fversion writeasencodedunicode writer xmlstreamexception writer.write writer.write fversion fversion.length fversion writer.write encodingset writer.write writer.write fcharencoding writer.write standaloneset writer.write writer.write fisstandalone writer.write writer.write ioe xmlstreamexception ioe