Berkano User

Berkano-user was started long ago, then re-used once I got disapointed with osuser. Still has a couple of old classes or ideas here and there, needs clean up and polishing.

User management

Berkano-user defines a couple of interface for users, groups, permissions, membership management. Much like os-user does, but maybe with a more "modern" architecture.
All these are based on the principles of IoC, using CDI (constructor dependency injection). I'm personally using PicoContainer, but I believe Spring or any other ioc container should be usable as well.
You will need to declare the implementations you want to use to your container.
There is currently a single implementation, which is based on Hibernate.
Foreseen implementations could be JDO(is this still alive?), EJB3 (maybe the Hibernate implementation could fulfill both needs?), plain SQL(do we really want to maintain this?), LDAP, and delegators to application servers' authentication APIs.
User Datamodel
Berkano User UI for WebWork provides an UI for this.

User Preferences

Berkano-user defines simple interfaces to define the preferences that an application wants to expose to the end-user, ie what properties s/he can freely modify to suit his needs.
Read more.
Berkano User UI for WebWork provides an UI for this purpose.

Passwords

Berkano-user also defines interfaces and a couple of implementations for

• Password generation strategies (Used to generate a random password for new users, or to reset "forgotten" password, for instance). See Javadoc for PasswordGenerator
• Password matching and encoding strategies. See Javadoc for PasswordMatchingStrategy
• Password retrieval strategies (mail current password, mail newly generated password, ...). See Javadoc for PasswordRetrievalStrategy
  All these are also based on the principles of IoC/CDI.
  Berkano User UI for WebWork provides an UI for this purpose.