* GH-2988: Use `@Config(proxyBeanMethods=false)` Fixes https://github.com/spring-projects/spring-integration/issues/2988 For faster startup (and possibility to compile to native code with GraalVM) use a `proxyBeanMethods = false` on all the `@Configuration` classes in the Framework * Provide some other code style polishing * * Fix Checkstyle violation