anchor.diff:  }
   
   private boolean passHeadersInfo(Map mapHeaderInfo, HttpURLConnection con) {
  -    Iterator it = mapHeaderInfo.entrySet().iterator();
  -    while (it.hasNext()) {
  -      Map.Entry pair = (Map.Entry)it.next();
  +    Iterator headerIterator = mapHeaderInfo.entrySet().iterator();
  +    while (headerIterator.hasNext()) {
  +      Map.Entry pair = (Map.Entry)headerIterator.next();
         con.setRequestProperty(pair.getKey().toString(),pair.getValue().toString());
  -      it.remove(); // avoids a ConcurrentModificationException
  +      headerIterator.remove(); // avoids a ConcurrentModificationException
       }
       return true;
   }
  
positive.code: 
          con.setRequestMethod("POST");
          con.setDoOutput(true);
  
          OutputStream os = con.getOutputStream();
          os.write(bytes);
  
negative.code:     con.setReadTimeout(10000);
      con.setRequestMethod(method);
  
      passHeadersInfo(mapHeaderInfo, con);
  	
      if (bytes != null && bytes.length > 0 || method.equals("POST")) {
  
  