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 on the class
means that it applies to all methods of the class. If specified at the
method level, it only affects that method. If the RolesAllowed
annotation is specified at the class level and this annotation is
applied at the method level, the PermitAll
annotation overrides the RolesAllowed annotation for
the specified method.