code: public Object readPOJO(InputStream in) throws ConversionException, IOException, ClassNotFoundException {
          return readPOJOInternal(parse(in));
      }
docs: Decode a JSON document to retrieve an Object.
  
  @param in The stream to read JSON from
  @return The decoded Object
  @throws ConversionException If JSON uses unexpected structure/format
  @throws IOException If an I/O error occurs or if JSON is ill-formed.
  @throws ClassNotFoundException If needed class can't be found.
  @see #writePOJO(OutputStream, Object)