Change `graalvm.version` value in the ./pom.xml from 23.1.0 to 24.1.1 Truffle is built with GraalVM so a Graal JDK build is required. Anything less than JDK 21 will not work. If you're using sdk man, see https://sdkman.io/jdks#graalce OR https://sdkman.io/jdks#graal I would have created a pull request for this but looks like pull requests are being ignored