org.w3c.dom.DOMException: Only one root element allowed in android xml parsing -

i have method in pass xml , returns parsed document.in devices got above shown error.(the xml contains 1 root element actually)

public document getdomelement(string xml) {         document doc = null;         documentbuilderfactory dbf = documentbuilderfactory.newinstance();         try {             documentbuilder db = dbf.newdocumentbuilder();             inputsource = new inputsource();             is.setcharacterstream(new stringreader(xml));             doc = db.parse(is);     //i got error here         } catch (parserconfigurationexception e) {             log.e("error: ", e.getmessage());             return null;         } catch (saxexception e) {             log.e("error: ", e.getmessage());             return null;         } catch (ioexception e) {             log.e("error: ", e.getmessage());             return null;         }         return doc;     } 

starting of xml this

<?xml version="1.0" encoding="utf-8"?><rss version="2.0"         xmlns:content="http://purl.org/rss/1.0/modules/content/"         xmlns:wfw="http://wellformedweb.org/commentapi/"         xmlns:dc="http://purl.org/dc/elements/1.1/"         xmlns:atom="http://www.w3.org/2005/atom"         xmlns:sy="http://purl.org/rss/1.0/modules/syndication/"         xmlns:slash="http://purl.org/rss/1.0/modules/slash/"         >  <channel> 

and end

</channel> </rss>