JAR has additional structure to it, though it's mostly optional stuff, like metadata and code signing: https://docs.oracle.com/en/java/javase/21/docs/specs/jar

JAR has additional structure to it, though it's mostly optional stuff, like metadata and code signing: https://docs.oracle.com/en/java/javase/21/docs/specs/jar/jar.html https://docs.oracle.com/en/java/javase/21/docs/specs/jar/jar...