code: public <T> T read(final String s, final DataTypeDescriptor<T> descriptor)
  			throws Exception {
  		if (descriptor == null) throw new NullPointerException("descriptor");
  		if (s == null) return null;
  
  		JsonParser parser = factory.createParser(s);
  		return read(parser, descriptor);
  	}
docs: Parses an object from a string.