This utility class associates a Subject to the current
AccessControlContext. When a SecurityManager is
used, * the container will always associate the called thread with an
AccessControlContext * containing only the principal of the requested
Servlet/Filter.
This class uses reflection to invoke the invoke methods.
Subjectto the currentAccessControlContext. When aSecurityManageris used, * the container will always associate the called thread with an AccessControlContext * containing only the principal of the requested Servlet/Filter. This class uses reflection to invoke the invoke methods.