Servlet / Servlet Interview Questions
List a few annotations relevant to container security.
@ServletSecurity annotation provides an alternative mechanism for defining access control constraints for the whole servlet. These annotations provide an alternative mechanism for specifying security constraints declaratively by
@DeclareRoles annotation is used by application to declare security roles. It can be specified on a class. The value of the DeclareRoles annotation is a list of security role names.
@DenyAll annotation specifies that no security roles are allowed to invoke the specified method(s) - i.e that the methods are to be excluded from execution in the J2EE container.
@PermitAll annotation specifies that all security roles are allowed to invoke the specified method(s) i.e that the specified method(s) are "unchecked". It can be specified on a class or on methods. Specifying it in the class means that it applies to all methods of the class. If specified at the method level, it only affects that method.
@RolesAllowed annotation specifies the security roles permitted to access methods in an application. This annotation can be specified on a class or on one or more methods. When specified at the class level, the annotation applies to all methods in the class. When specified on a method, the annotation applies to that method only and overrides any values specified at the class level.
@RunAs annotation is equivalent to the <run-as> element in the deployment descriptor and allows developers to run code under the specified role.
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