Which of the following methods does the Java Servlet Specification v2.4 define in the HttpServletRequest interface that control programmatic security? Each correct answer represents a complete solutio

`getCallerIdentity()` is not a method defined in the `HttpServletRequest` interface as part of the Java Servlet Specification v2.4 or later versions for programmatic security functionalities.

`isUserInRole()` is used to determine if the authenticated user making the request belongs to a specific security role, facilitating role-based authorization within the application.

`getUserPrincipal()` retrieves the `java.security.Principal` object representing the authenticated user, providing their identity which can be used for further security checks or personalization.

`getRemoteUser()` returns the login name of the user making the request if the user has been authenticated, offering a direct way to identify the requesting user.