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Oracle GlassFish Server 3.1 Application Development Guide
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Document Information


Part I Development Tasks and Tools

1.  Setting Up a Development Environment

2.  Class Loaders

The Class Loader Hierarchy


Using the Java Optional Package Mechanism

Using the Endorsed Standards Override Mechanism

Class Loader Universes

Application-Specific Class Loading

Circumventing Class Loader Isolation

Using the Common Class Loader

Sharing Libraries Across a Cluster

Packaging the Client JAR for One Application in Another Application

To Package the Client JAR for One Application in Another Application

3.  Debugging Applications

Part II Developing Applications and Application Components

4.  Securing Applications

5.  Developing Web Services

6.  Using the Java Persistence API

7.  Developing Web Applications

8.  Using Enterprise JavaBeans Technology

9.  Using Container-Managed Persistence

10.  Developing Java Clients

11.  Developing Connectors

12.  Developing Lifecycle Listeners

13.  Developing OSGi-enabled Java EE Applications

Part III Using Services and APIs

14.  Using the JDBC API for Database Access

15.  Using the Transaction Service

16.  Using the Java Naming and Directory Interface

17.  Using the Java Message Service

18.  Using the JavaMail API


Using the Java Optional Package Mechanism

Optional packages are packages of Java classes and associated native code that application developers can use to extend the functionality of the core platform.

To use the Java optional package mechanism, copy the JAR files into the domain-dir/lib/ext directory, then restart the server.

For more information, see Optional Packages - An Overview and Understanding Extension Class Loading.