First and foremost, a big thanks to my loving wife, Smita, and adorable son, Nairit. Both of them patiently tolerated me spending countless hours in front of my Mac and never complained. I would like to thank my parents for always doing everything that they could so that I could do what I like. I dedicate this book to Smita, Nairit, Aai, and Baba.

This book would not have been possible without Packt's trust in me. I would like to thank the editors and coordinators from Packt, including Richard, Parita, Priyanka, Rashmi, Madhunikita, and many more. I would also like to thank Abhinandan for providing a helping hand with the project at the time it was required the most. Also, heartfelt thanks to all the reviewers, André Burgaud, Eric Berry, Fredrik Sandell, and Michał Huniewicz, for painstakingly reviewing all the chapters and providing detailed feedback.

I am grateful to ThoughtWorks for being such an amazing place where I learned so many things.

Last but not the least, this acknowledgement can not be complete without thanking the folks who made Gradle so awesome, those who built and maintained Groovy, and the Groovy community. Kudos to all for the hard work.

Abhinandan is a Java guy with an extensive experience in software design, architecture, and deployment and automation frameworks. He is passionate about providing solutions for different business needs. His other passions include hiking, reading, and travelling. You can contact him at <[email protected]>.

Like how a film cannot be made with just actors and directors—it requires lots of different team members' help, who support at different stages until the movie gets released— a book can't be written with just the effort of one person or the author. It requires lots of support from different people at different stages, without which it would not be possible to put the thoughts on paper and make it available to the audience.