Sun Java System Application Server Enterprise Edition 8.1 2005Q2 Developer's Guide

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# Introducing the Application Client Container

The Application Client Container (ACC) includes a set of Java classes, libraries, and other files that are required for and distributed with Java client programs that execute in their own Java Virtual Machine (JVM). The ACC manages the execution of J2EE application client components, which are used to access a variety of J2EE services (such as JMS resources, EJB components, web services, security, and so on.) from a JVM outside the Sun Java System Application Server.

The ACC communicates with the Application Server using RMI-IIOP protocol and manages the details of RMI-IIOP communication using the client ORB that is bundled with it. Compared to other J2EE containers, the ACC is lightweight.

## Security

The ACC is responsible for collecting authentication data such as the username and password and sending the collected data to the Application Server. The Application Server then processes the authentication data using the configured JavaTM Authentication and Authorization Service (JAAS) module.

Authentication techniques are provided by the client container, and are not under the control of the application client component. The container integrates with the platform’s authentication system. When you execute a client application, it displays a login window and collects authentication data from the user. It also supports SSL (Secure Socket Layer)/IIOP if configured and when necessary.

## Naming

The client container enables the application clients to use the Java Naming and Directory Interface (JNDI) to look up J2EE services (such as JMS resources, EJB components, web services, security, and so on.) and to reference configurable parameters set at the time of deployment.

- Previous: Chapter 7 Using Container-Managed Persistence for Entity Beans
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