Technically it's EJB (Enterprise Java Beans), JavaBeans is a pattern where you need to adhere to particular coding conventions (getters, setters, naming of said getters and setters).

I also used to work with these a long time ago (EJB 1.1 and 2.0). A lot has changed since then though, and EJB 3 has solved a lot of the pain points (arguably pushed by the success of concepts used in Spring and Hibernate, whose authors served in the JCP for the newer JEE specs).