Spring Apply 'instanceof pattern matching' in spring-webflux

Most variable names are written in the manner typically used in Java. (ForExample -> forExample)

Comment From: sbrannen

This has been merged into main in f64397d822ca0b59e0498bbfe5bd9b2968f6aa4b and revised in 9f7a510f9027f4a2c29072e7e51156d765337638.

Thanks

Comment From: divcon

Thanks for your review.