Backport of the OpenJDK sandbox java.util.json API adapted for Java 21+. Experimental; APIs and behavior may change as upstream evolves.

Experimental JSON Type Definition (JTD) validator built using the java.util.json Java 21 backport; implements RFC 8927 for code generation and portable validation.

Bytecode-generated JTD validators using the JDK 24+ ClassFile API. Generates Java 21 compatible classfiles for hot-path validation.

JsonPath implementation for the java.util.json Java 21 backport; parses JsonPath expressions to AST and matches against JSON documents.

Experimental JSON Schema 2020-12 validator built using the java.util.json Java 21 backport; includes integration tests running the official JSON Schema Test Suite.

Runs the official JSON Test Suite against the java.util.json Java 21 backport to track conformance with JSON standards.

Compares the OpenJDK sandbox java.util.json API to this Java 21 backport and reports differences to track upstream changes. Experimental tooling.

Offline JTD-to-JAR compiler that packages generated validators into standalone JAR files.