Description: The Java Authentication and Authorization Service (JAAS) was introduced during the lifetime of JDK 1.3. JAAS provides two services: authentication and authorization. The authentication service is pluggable, which means that an application can remain independent of the authentication techniques used, that authentication modules can be upgraded easily, and that an application can use multiple forms of authentication concurrently. Let's look at the authentication part of JAAS, and then we'll discuss authorization later
