First and foremost, I would like to thank my parents, Mr. Purushothaman M.R and Mrs. Ratnam K.N, for allowing me to realize my own potential. All the support and encouragement they have provided me over the years were the greatest gifts that anyone has ever given me. I would like to thank my elder brother, Mr. Biju P Manakkattil, with all my heart for all the support he gave me throughout my life.

A thank you to my lovely wife, Remya, for her love, care, understanding, and sacrifices. Thanks to my son, Chinmay, for being my true inspiration for this work. Thanks to my sweet little daughter, Ameya, for filling my life with fun and joy. I could not have done this without their support.

Thanks to my nephews, Devadathan and Dhananjay, and sister-in-law, Mrs. Kavitha Biju, for all their support and well wishes. Thanks to my parents-in-law, Mr. Mohanan P.C and Mrs. Presanna P.N, for their love and care.

I sincerely thank and appreciate the team at Packt Publishing for their unconditional support, professionalism, and commitment through this project. Special thanks to Amey Varangaonkar, Harsha Bharwani, and Nadeem Bagban for all their support throughout this project. Thanks to all the technical reviewers for ensuring the quality of this book. They include Erik Azar, Ludovic Dewailly, Giuliano Araujo Bertoti, and Debasis Roy.

Special thanks to my managers at Oracle—Sharad Medhavi, who is a senior director at Oracle, and Chris Tonas, vice president at Oracle—for their support throughout this project. Thanks to Rekha Mathew, the technical manager at Oracle, for her help with Appendix, Useful Features and Techniques, in this book. Thanks to Vinay Agarwal, the principal product manager at Oracle, for his valuable insights on the REST metadata formats.

Thanks to the members of the Java EE, Jersey framework, and Apache Olingo communities for their timely responses to the questions that I raised in the discussion forums and mailing lists. A special thanks to all my friends for their encouragement and unconditional support throughout my life.