output: #fixed code
                               public static String read(File file) throws IOException {
  		BufferedReader in = new BufferedReader(new InputStreamReader(new FileInputStream(file), "UTF-8"));
  		String ret = new String(new byte[0], "UTF-8");
  		 
  		String line;
  		while ((line = in.readLine()) != null) {
  			ret += line;
  		}
  
  		in.close();
  		return ret;
  	}
input: #vulnerable code 
                               public static String read(File file) throws IOException {
  //		BufferedReader in = new BufferedReader(new InputStreamReader(new FileInputStream(file), "UTF-8"));
  		InputStream inStream = new FileInputStream(file);
  		BufferedReader in = new BufferedReader(inputStreamToReader(inStream));
  		StringBuilder ret = new StringBuilder();
  
  		String line;
  		while ((line = in.readLine()) != null) {
  			ret.append(line);
  		}
  		in.close();
  
  		return ret.toString();
  	} 
                              #location 13 
                              #vulnerability type RESOURCE_LEAK