jGuard is written in java. his goal is to provide a security framework based on jaas (java authentication and authorization security) . this framework is written for web and standalone applications, to resolve simply, access control problems.
AccesStream is a Java-based, embeddable identity and access management (IAM), security and access reporting platform. AccesStream includes Single Sign-On using SAML 2.0 and provides profile storage with LDAP v3 access for integration with Linux PAM
Toolset for pam based user management. Including Java client, database scheme (postgresql), pam and nss modules for postgresql (provided by the sysauth-pgsql project ) and interfaces to the system (e.g. rules generation for a traffic shaper).