Book: Login Module Reference Revision: n_1575841_login-module-reference_version_6.4_edition_1.0_release_0-revision_6701191 Section: 1.2. Extension Hierarchy Issue description: "Login Module Extension Hierarchy" contains children of AbstractServerLoginModule. But there are missing two login modules; RealmDirect Login Module as child of UsernamePasswordLoginModule and also Remoting Login Module as child of AbstractServerLoginModule. However, there exist also login modules which are not children of AbstractServerLoginModule: Kerberos, Client and RunAs Login Modules. Suggestions for improvement: In "Login Module Extension Hierarchy" add reference to Kerberos, Client , RunAs, RealmDirect and Remoting Login Modules.