René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Schema generator reports false positive unsatisfiable input object cycle","articleBody":"[Per the spec](https://spec.graphql.org/draft/#example-2f832), cyclic input object fields of non-nullable list type with non-nullable items are valid since the field value can be an empty list. However, the `NoUnbrokenInputCycles` rule reports these input objects as invalid.\n\nTo reproduce, run the following code:\n```java\nimport graphql.schema.idl.NoopWiringFactory;\nimport graphql.schema.idl.RuntimeWiring;\nimport graphql.schema.idl.SchemaGenerator;\nimport graphql.schema.idl.SchemaParser;\n\npublic class Main {\n    public static void main(String[] args) {\n        String query = \"\"\"\n                  input Example {\n                    self: [Example!]!\n                    value: String\n                  }\n                \n                  type Query {\n                    example(example: Example): String\n                  }\n                \"\"\".stripIndent();\n        TypeDefinitionRegistry typeDefinitionRegistry = new SchemaParser().parse(query);\n        RuntimeWiring runtimeWiring = RuntimeWiring.newRuntimeWiring().wiringFactory(new NoopWiringFactory()).build();\n        new SchemaGenerator().makeExecutableSchema(typeDefinitionRegistry, runtimeWiring);\n    }\n}\n```\nObserve an `InvalidSchemaException` is thrown with the message `[self!] forms an unsatisfiable cycle`\n","author":{"url":"https://github.com/RafeArnold","@type":"Person","name":"RafeArnold"},"datePublished":"2026-01-23T11:47:37Z","url":"https://github.com/graphql-java/graphql-java/issues/4214"}