code: public static synchronized void suppressField(Class<?>[] classes) {
  		if (classes == null || classes.length == 0) {
  			throw new IllegalArgumentException("You must supply at least one class.");
  		}
  		for (Class<?> clazz : classes) {
  			suppressField(clazz.getDeclaredFields());
  		}
  	}
docs: Suppress all fields for these classes.