Launch4J 3.50 has recently been released, which improves support for finding preinstalled and bundled JREs. I have had issues with Launch4J executables not finding OpenJDK 17 runtimes in some corporate IT setups, and the new version of Launch4J looks like it could improve this situation.

It does include some changes to the names of configuration properties, which I don't believe will impact launch4j-maven-plugin directly, though it will impact users of it who would have to update their POMs accordingly.