JAAS,theJavaAuthenticationandAuthorizationService,hasbeenastandardpartoftheJavasecurityframeworksinceversion1.4versionandwasavailableasanoptionalpackageinJ2SE1.3.Beforethattime,theprevioussecurityframeworkprovidedawaytoallowordisallowaccesstoresourcesbasedonwhatcodewasexecuting.F