This is a first release and some of the more obscure functionalities haven't been added yet.
Installation is easy:
jruby -S gem install jruby-ldapIf you're interested in the source, it's available on RubyForge, within the JRuby-extras project.
JRuby/LDAP uses JNDI to achieve nice LDAP access. You can also use standard Java ways (i.e. jndi.properties) to change the LDAP access implementation.
The code is BSD licensed.