this.type = type;
        }

        @Override
        public Class<T> getType() {
            return type;
        }

        @Override
        public ValueProducer getProducer() {
            if (producer != null) {
                return ValueProducer.task(producer);
            } else {
                return ValueProducer.unknown();
            }
        }

        @Override

            return spec.provider
        }

        @Override
        List<Consumer<ProviderInternal<?>>> safeConsumers() {
            return [ProviderConsumer.TO_STRING, ProviderConsumer.GET_PRODUCER]
        }
    }

    static class FilteringProviderCircularChainEvaluationTest extends CircularChainEvaluationSpec<String> implements UsesStringProperty {
        @Override

            return transform.provider
        }

        @Override
        List<Consumer<ProviderInternal<?>>> safeConsumers() {
            return [ProviderConsumer.TO_STRING, ProviderConsumer.GET_PRODUCER]
        }
    }

    static class TransformBackedProviderCircularChainEvaluationTest extends CircularChainEvaluationSpec<String> implements UsesStringProperty {
        @Override

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

        @Override
        public ValueProducer getProducer() {
            return ValueProducer.taskState(get());
        }
    }