A few minor issues to fix:

1. Checkstyle

Check failure on line 26 in src/main/java/org/sentrysoftware/example/Example.java

@github-actionsgithub-actions
/ Checkstyle
com.puppycrawl.tools.checkstyle.checks.design.HideUtilityClassConstructorCheck
Utility classes should not have a public or default constructor.

2. Compiler complains about inconsistent Java version.

3. Update skin to the latest version