Cannot register HttpRequestHandlerServlet with Spring Boot

Question

I'm trying to use HttpRequestHandlerServlet in common with HttpRequestHandlingMessagingGateway to expose simple REST URL to browser. But I cannot register HttpRequestHandlerServlet, I'm doing it in the following way:

@Bean
public ServletRegistrationBean inboundServletRegistration(ApplicationContext context) {
    final HttpRequestHandlerServlet servlet = new HttpRequestHandlerServlet();
    ServletRegistrationBean registration = new ServletRegistrationBean(
            servlet, "/demo/*");
    registration.setName("inboundServletRegistration");

    return registration;
}

Spring boot application start's ok, but when try to access HttpRequestHandlingMessagingGateway endpoint with mapping:

@Bean
public HttpRequestHandler httpInboundEndPoint() {
    // Http Rest gateway expecting reply.
    final HttpRequestHandlingMessagingGateway restGateway = new
            HttpRequestHandlingMessagingGateway(true);

    // Mapping of URL this gateway consumes...
    restGateway.setRequestMapping(
            mapping(new HttpMethod[]{HttpMethod.GET}, "/context/{param}"));

at address http://localhost:8080/demo/context/{param} I get total nonsense crash:

org.springframework.beans.factory.BeanNotOfRequiredTypeException: 

Bean named 'inboundServletRegistration' must be of type [org.springframework.web.HttpRequestHandler], but was actually of type [org.springframework.boot.context.embedded.ServletRegistrationBean]

Did you come across to this problem? Can you please help me out?

Answer 1

Okay, I figured it out.

Key to pass this problem is to register HttpRequestHandler under the same bean name as the HttpRequestHandlerServlet registration bean...Going rather back to XML config...:-(