16.1. About the Security Extension Architecture is outdated. It talks about JaasSecurityManager, JaasSecurityManagerService and JaasSecurityDomain. These classes aren't part of EAP 6 and text connected with them should be removed. I'm not sure, but I think that all this 16.1. About the Security Extension Architecture could be removed because it is not include in EAP 6.
Verified on docs-stage: Revision 6.2.2-6 Revision 6.3.0-12