return String.format("provider(%s '%s', %s)", getTypeDisplayName(), getName(), getType());
        }
    }

    protected class ExistingNamedDomainObjectProvider<I extends T> extends AbstractNamedDomainObjectProvider<I> {

        public ExistingNamedDomainObjectProvider(String name, Class<I> type) {
            super(name, type);
        }

        @Override
        public void configure(Action<? super I> action) {