Making an InputSource from a String

I need to parse some XML that is in a string. I have created a document object to parse the xml, but I need to get it in the format of an InputSource. Here is the code that I have written. I am getting an error that says:
"InputSource not found in type declaration"
Here is the code:
public static Document getDocument(String xml)
          // create a new document
          DocumentBuilderFactory docBuildFactory = null ;
          DocumentBuilder docBuilder = null ;
org.w3c.dom.Document doc = null ;
          try
docBuildFactory = DocumentBuilderFactory.newInstance() ;
               docBuildFactory.setValidating(true) ;
               docBuilder = docBuildFactory.newDocumentBuilder() ;
               doc = docBuilder.newDocument() ;
doc = docBuilder.parse(new InputSource(new StringReader(xml)));
} catch (Exception e) { e.printStackTrace(); }
          return doc ;

If I use InputStream instead, then I get the following error:
'Class java.io.InputStream is an abstract class. It cannot be instantiated'
This is the line that the error is coming from:
doc = docBuilder.parse(new InputStream(new StringReader(xml)));
Any thoughts?

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voila!

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Making an InputSource from a String

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