Caused by: java.lang.IllegalArgumentException: Unsupported class file major version 65
at io.jooby.internal.$shaded.asm.ClassReader.<init>(ClassReader.java:199)
at io.jooby.internal.$shaded.asm.ClassReader.<init>(ClassReader.java:180)
at io.jooby.internal.$shaded.asm.ClassReader.<init>(ClassReader.java:166)
at io.jooby.internal.RouteAnalyzer.returnType(RouteAnalyzer.java:44)
at io.jooby.internal.RouterImpl.start(RouterImpl.java:555)
at io.jooby.Jooby.start(Jooby.java:865)
at io.jooby.Server$Base.fireStart(Server.java:93)
at io.jooby.jetty.Jetty.start(Jetty.java:96)
at io.jooby.Jooby.start(Jooby.java:805)
... 3 more
Compiling and running with jdk 21 produces this: