Maven / Java Missing

Symptom

The build fails because java or mvn is not found, or reports a version too old.

Requirements

• Java JDK 21
• Maven 3.9+

Check

java -version
mvn -version

Install the required JDK and Maven, then retry the build.

Note

Warnings such as Failed to build parent project for org.openjfx:javafx-* during a Maven build are known and non-blocking.

See Install and BUILD.