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First, note that `./gradlew` will use the version of Gradle configured for the project, independent from what you could have installed (or not !)
And Java 19 is only supported since Gradle 7.6 (<https://docs.gradle.org/current/userguide/compatibility.html#java>)
You should install JDK 17 or JDK 11 (depending on what's needed by the project: Ofbiz apparently wants JDK 17: <https://github.com/apache/ofbiz-framework#system-requirements>) and use `update-java-alternatives` to switch versions (<https://manpages.ubuntu.com/manpages/jammy/man8/update-java-alternatives.8.html>).

Actually I had 17 installed - didn't realize 19 was there too.

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