This version is about GraalVM compiliation. With the help of client-maven-plugin, it is possible to simply get a native binary which uses JavaCV and JavaFX to display a webcam image stream.
Ideally, it works out of the box by entering:
mvn clean client:build client:run -Djavacpp.platform.custom -Djavacpp.platform.host -Dgraalvm.home=/path/to/your/graalvm/distribution