XML parsing error related to char encoding set

Question

I have an valid XML file(valid cause browser can parse it) that I try to parse using JDOM2. The code was running good for other xml files but for this particular xml file it gives me the following exception on builder.build() line : "com.sun.org.apache.xerces.internal.impl.io.MalformedByteSequenceException: Invalid byte 3 of 3-byte UTF-8 sequence. "

My code is as follows

    import java.io.*;
    import java.util.*;
    import java.net.*;
    import org.jdom2.*;
    import org.jdom2.input.*;
    import org.jdom2.output.*;
    import org.jdom2.adapters.*;

    public class Test
    {
        public static void main(String st[])
        {
            String results="N.A.";
            SAXBuilder builder = new SAXBuilder();
            Document doc;
            results = scrapeSite().trim();

                    try
                    {
                        doc = builder.build(new ByteArrayInputStream(results.getBytes()));
                    }
                    catch(JDOMException e)
                    {
                        System.out.println(e.toString());
                    }
                    catch(IOException e)
                    {
                        System.out.println(e.toString());
                    }
        }


        public static String scrapeSite()
        {
            String temp="";
            try
            {
                URL url = new URL("http://msu-footprints.org/2011/Aditya/search_5.xml");
                URLConnection conn = url.openConnection();
                conn.setAllowUserInteraction(false);
                InputStream urlStream = url.openStream();
                BufferedReader br = new BufferedReader(new InputStreamReader(urlStream));

                String t = br.readLine();
                while(t!=null)
                {
                    temp = temp + t;
                    t = br.readLine();
                }
            }
            catch(IOException e)
            {
                System.out.println(e.toString());
            }

            return temp;
        }
    }

Answer 1

why are you reading the xml into a String with a Reader? you are corrupting the xml before you parse it. treat xml as bytes, not chars.

and why are you reading the whole URL InputStream just to convert it into another ByteArrayInputStream? you can reduce that to about 2 lines of code by passing the URL InputStream directly to the builder. (not mention avoid additional memory issues caused by reading the entire stream into memory).