Spring Roo is an open source application development tool for Java developers that allows you to code 100% in Java and to reuse all your existing Java knowledge, skills and experience.

Maven is an open source build tool traditionally used in Java and Java EE projects to compile source files, execute unit tests and assemble distribution artifacts. The first part of this tutorial explains how to download and install Maven in our development environment. The second part provides a first view at pom.xml configuration file and show how to compile a project.

In this article, based on chapter 3 of Spring in Practice, Willie Wheeler, John Wheeler and Joshua White show you how to build a simple Spring Java application to manage a roster.  You will write some Spring Web MVC code with a goal to get an intuitive feel for how things work in Spring Web MVC.

Grails 2.0 has just been released. This new version brings a greatly enhanced user experience. Everything from the command line, to the test reports, to the UIs that Grails generates for you have been rethought and reinvented.

This initial video explains the the mismatch between object and relational models and what Object/Relational Mapping (ORM) is. ORM is the concept that Hibernate uses to facilitate the storage and retrieval of Java domain objects in relational databases.

The Spring Data project makes it easier to build Spring-powered applications that use new data access technologies such as non-relational NOSQL databases, cloud based data services, for instance graph databases. This video is designed for enterprise developers that are working with Spring and need to understand how they would integrate a NOSQL graph database.

This video presents OSGi and how it relates to Java EE and GlassFish. It describes how OSGi works in general, how GlassFish is built on it and what implications that has regarding to modifying a GlassFish instance’s features. The video concludes on how OSGi can be used in a wide range of companies.