I'm playing around with the splash screen example and it doesn't seem to work on a later version of Java.

my-computer splash % java -jar target/splash-0.1.0-SNAPSHOT-standalone.jar
Error: LinkageError occurred while loading main class splash.Main
	java.lang.UnsupportedClassVersionError: splash/Main has been compiled by a more recent version of the Java Runtime (class file version 61.0), this version of the Java Runtime only recognizes class file versions up to 60.0

It's not a show stopper for me and I'm happy to just move past it since I actually don't have much experience at the java level. But sharing in case someone else is easily able to spot the problem. Happy to turn into an issue if you would like to keep tabs on it and solve it.

NVM tracked down the problem. Just a version bump in the dependencies for the example.