JNDI is one of the most important services provided by the application server. The JBoss clustered JNDI service is based on the client-side interceptor architecture. The client must obtain a JNDI stub object (via the InitialContext object) and invoke JNDI lookup services on the remote server through the stub. Furthermore, JNDI is the basis for many other interceptor-based clustering services: those services register themselves with the JNDI so that the client can lookup their stubs and make use of their services.