The following extension class, which uses @EndpointWebExtension to extend CustomEndpoint for custom behavior for web technology and for JMX technology, will not be changed:

@Component
@EndpointWebExtension(endpoint = CustomEndpoint.class)
public class CustomEndpointWebExtension {
    ...

    @ReadOperation
    public WebEndpointResponse<String> getWeb() {
        ...
        return new WebEndpointResponse<>("Custom Web 
          Extension Hello, World!", 200);
    }
}

The @EndpointWebExtension annotation will make the CustomEndpointWebExtension a web extension for CustomEndpoint with its endpoint property. The method with the @ReadOperation annotation will be the overridden Getter. Accessing http://<host>:<port>/actuator/custom (the default host is localhost, and the default port is 8080 unless configured otherwise) and a URL using a browser will prompt for the username (specify sysuser) and password (specify password) and when logged in will return the following:

Custom Web Extension Hello, World!