Spring Update WebMvcConfigurationSupport javadoc for HandlerFunctionAdapter

The Java Doc for org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport doesn't contain complete information about all HandlerAdapter classes registered with the aforementioned class. According to source code of WebMvcConfigurationSupport it also creates org.springframework.web.servlet.function.support.HandlerFunctionAdapter handler adapter for routing functions.