public List<String> getKey(String strFileName) throws DocumentException{
	  xmlFile=new File(strFileName);      
 	  SAXReader reader=new SAXReader();     
 	  Document xmlDoc;
	
	  xmlDoc = reader.read(xmlFile);
	 
 	  Element root=xmlDoc.getRootElement();
 	  List<String> li = new ArrayList<String>();
 	  List testcase=xmlDoc.selectNodes("//keyword");
 	  
		for(Iterator i=testcase.iterator();i.hasNext();){
			Element ele=(Element)i.next();
//			System.out.println("Test "+ele.attribute("name").getValue()); 
			li.add(ele.attribute("name").getValue());
		}
	 return li;
 }