Writing applications with GlassFish

To get started writing applications, check out:

• Get started with Jakarta EE
• Jakarta EE developer resources
• GlassFish Documentation, especially the Application Development Guide

GlassFish supports Jakarta EE APIs, several MicroProfile APIs, and some GlassFish-specific APIs. That means that your application doesn’t need to include libraries to use them, it just needs one or more small API artifacts at compile time. When the application is started (deployed) with GlassFish, GlassFish provides the functionality for the application.

That makes applications:

• smaller (fewer JAR files and classes needed in the application file)
• portable (you can run the application on a different server with no or few modifications)
• and your choices easier (no need to figure out which library provides the functionality)