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Apache Groovy is a powerful, object-oriented programming language that runs on the Java Virtual Machine (JVM). It is highly versatile and can be used for a wide range of software development tasks, such as scripting, testing, and building web applications. If you are interested in learning Groovy or enhancing your existing skills, taking an online course or earning a certification can provide you with a comprehensive understanding of this language. In this article, we will explore the 10 best Apache Groovy courses and certifications available online, covering different skill levels and topics.

1. Groovy Fundamentals

If you are new to Apache Groovy, the “Groovy Fundamentals” course offered by Pluralsight is an excellent starting point. This course is designed to help beginners understand the core concepts of Groovy and its integration with Java. Throughout the course, you will learn about the syntax, control structures, and object-oriented programming concepts in Groovy. By the end of the course, you will have a solid foundation to start writing Groovy scripts and applications.

2. Groovy in Depth

Once you have a good grasp of the fundamentals, the “Groovy in Depth” course on Udemy is a great next step. This course dives deeper into the various features of Groovy and teaches you advanced topics like metaprogramming, concurrency, and domain-specific languages. The course also provides hands-on exercises and real-world examples to reinforce your learning. By the end of this course, you will have a comprehensive understanding of Groovy and be able to write sophisticated applications using its advanced features.

3. Grails for Java Developers

If you are already familiar with Java and want to leverage your existing skills to develop web applications using Groovy, the “Grails for Java Developers” course on Pluralsight is a perfect fit for you. This course teaches you how to use the Grails framework, which is built on top of Groovy, to rapidly develop web applications. You will learn about Grails’ conventions, object-relational mapping, and how to build RESTful APIs. By the end of the course, you will be able to create dynamic and scalable web applications using Grails.

4. Building Web Applications with Groovy

For those interested in learning how to build web applications with Groovy from scratch, the “Building Web Applications with Groovy” course on Udemy is an excellent choice. This course covers the fundamentals of web development using Groovy, including handling HTTP requests, working with databases, and implementing authentication and authorization. The course also walks you through the process of deploying your applications to a web server. By the end of this course, you will have the skills to develop robust and scalable web applications using Groovy.

5. Testing with Spock

The “Testing with Spock” course on Udemy focuses on using the Spock framework, which is written in Groovy, for unit and integration testing. The course covers the basics of Spock and then dives into more advanced topics like mocking, data-driven testing, and testing Spring applications. By the end of the course, you will have a solid understanding of how to effectively test your Groovy applications using the Spock framework.

6. Apache Groovy Certification

For those looking to validate their Groovy skills, the Apache Groovy Certification offered by the Apache Software Foundation is a valuable credential. This certification exam tests your knowledge of Groovy syntax, core concepts, and advanced topics. By earning this certification, you demonstrate your expertise in Groovy and enhance your credibility as a Groovy developer.

7. Groovy Workshop

If you prefer a more interactive learning experience, attending a Groovy workshop can be a great option. The Groovy Workshop offered by Skills Matter is a hands-on training program that covers the essentials of Groovy programming. In this workshop, you will work on practical exercises and projects under the guidance of experienced instructors. By the end of the workshop, you will have a solid understanding of Groovy and be able to apply it to real-world scenarios.

8. Groovy Podcasts and Blogs

Podcasts and blogs are excellent resources to stay updated with the latest trends and best practices in Groovy development. The Groovy Podcast, hosted by Ken Kousen, covers various topics related to Groovy, including language features, libraries, and community events. Additionally, blogs like “Mr. Haki’s Blog” and “CodeNarc Blog” provide in-depth articles and tutorials on Groovy programming. Subscribing to these podcasts and regularly reading these blogs will keep you engaged and informed about the Groovy ecosystem.

9. Mastering Groovy

For those who are already proficient in Groovy and want to take their skills to the next level, the book “Mastering Groovy” by Adam L. Davis is a valuable resource. This comprehensive guide covers advanced topics like metaprogramming, domain-specific languages, and concurrency. The book also provides real-world examples and best practices to help you become a Groovy expert.


Whether you are a beginner or an experienced developer, there are numerous online courses, certifications, workshops, and resources available to help you master Apache Groovy. Starting with the fundamentals and gradually progressing to more advanced topics will build a strong foundation in Groovy programming. By completing these courses and certifications, you can enhance your skills, become a proficient Groovy developer, and open doors to exciting career opportunities in software development.