Bitter EJB defines EJB traps, called antipatterns, and provides effective solutions. It covers messaging, transactions, persistence (with JDO and OR mapping), performance tuning and builds. Bitter EJB, covers antipatterns, or common traps, surrounding EJB. The book spreads across many different aspects of EJB, from transactions to persistence to messaging, including other important topics like performance and testing. Topics covered include: EJB persistence strategies; Entity bean alternatives; EJB message driven beans; stateful session beans; XDoclet, Ant and Junit; and automating performance tuning.