/** * Creates an immutable copy of a {@link Registration} value. * Uses accessors to get values to initialize the new immutable instance. * If an instance is already immutable, it is returned as is. * @param instance The instance to copy * @return A copied immutable Registration instance */ public static ImmutableRegistration copyOf(Registration instance) { if (instance instanceof ImmutableRegistration) { return (ImmutableRegistration) instance; } return ImmutableRegistration.builder() .from(instance) .build(); }