Исходный код тестового проекта: http://www.eclipse4you.com/download/articles/com.berdaflex.jpa_simple_test.zip

FAQ по JPA http://java.sun.com/javaee/overview/faq/persistence.jsp

Java Persistence with Hibernate http://hibernate.org/397.html

Проект GlassFish https://glassfish.dev.java.net/index.html

Oracle Toplink JPA http://www.oracle.com/technology/jpa/index.html

Kodo™ 4.0.0 Developers Guide for JPA/JDO http://docs.solarmetric.com/full/html/index.html

JPA аннотации в JPOX http://www.jpox.org/docs/1_1/jpa_annotations.html

Проект Maven http://maven.apache.org

Каталог подключаемых модулей Eclipse http://www.eclipse4you.com

Проект Hibernate Tools http://www.hibernate.org/255.html