return data != null ? new String(data) : null;
        }

        @Override
        public String getName() {
            return name;
        }

        public void setName(String name) {
            this.name = name;
        }

        public int getTransformCallCount() {
            return transformCallCount.get();
        }

        public int getGetDataCallCount() {

                .singleton("mimeTypeHelper", MimeTypeHelperImpl.class)
                .<FileTransformer> singleton("fileTransformer", FileTransformer.class, transformer -> {
                    transformer.setName("fileTransformer");
                    transformer.setFeatureMap(featureMap);
                    transformer.setPropertyMap(propertyMap);
                    transformer.setChildUrlRuleMap(childUrlRuleMap);