About this task
WebSphere® Application Server supports plugging
in a custom JAAS login module before or after the WebSphere® Application
Server system login module. However, WebSphere® Application
Server does not support the replacement of the WebSphere® Application
Server system login modules, which are used to create the WSCredential
credential and WSPrincipal principal in the Subject. By using a custom
login module, you can either make additional authentication decisions
or add information to the Subject to make additional, potentially
finer-grained, authorization decisions inside a Java Platform,
Enterprise Edition (Java EE)
application.