/**
 * This package provides a framework for authentication and
 * authorization. The framework allows
 * authentication to be performed in pluggable fashion. Different
 * authentication modules can be plugged under an application without
 * requiring modifications to the application itself. The
 * authorization component allows specification of access controls
 * based on code location, code signers and code executors
 * (Subjects).
 *
 * @since JDK1.4
 */