It is Sun's JavaBeans Tutorial

The "Introducing Java Beans" Lesson is good place to start if you want to learn basic concepts of Java Beans and reusuable software components

This tutorial will cover Bean basics and more. First, JavaBeans will be introduced: the importance of components, other component technologies and the structure of JavaBeans

The  tutorial illustrates how a Message Driven Bean is written and deployed in an Enterprise JavaBeansTM 2.0 Container

This tutorial demonstrates the main features of building an application with the Bean Builder. The Bean Builder is a tool which allows the visual assembly of an application by instantiating and setting the properties of components based on the JavaBeansTM component architecture (beans).

Construct simple beans applications   using BeanBox

Here you will integrate the OrderGift entity bean into the regular shopping flow of your starter store: