EJB Server

• provides the execution environment for EJB containers
• provides the system services (multiprocessing, load-balancing, device access) for EJB containers
• effectively manages system resources for the container (pools and recycle network connections, processes, threads, memory, database connections, ...)
• solves the concurrent access to the bean (commonly, serialization of bean method's accesses is used)
• provides implementations of naming server (JNDI), transaction services (acts as transaction processing monitor) and optionally other (e.g. security) services