About the Authors

Achim Nierbeck has more than 14 years of experience in designing and implementing Java enterprise applications. He is a committer and PMC at the Apache Karaf project and member of the ASF. Besides working on Apache Karaf, he is also the project lead of the OPS4j Pax Web project. Since 2010, he has enjoyed working with OSGi enterprise applications. He holds a Diploma in Computer Engineering from the University of Applied Sciences in Mannheim.

When not working on enterprise or integration projects or open source development, he enjoys spending time with his family and friends.

He can be reached at notizblog.nierbeck.de.

I'd like to thank my wife, Doro, and my kids for their support while writing this book and in my career. I'd also like to thank the open source communities at Apache and OPS4j, who made this book possible.

Heath Kesler is an Apache developer and committer, has spoken at conferences around the world, and is a senior SOA architect with Savoir Technologies. He has architected and developed scalable, highly available SOA systems for large corporations around the globe.

He currently helps corporations implement and develop enterprise integration systems using messaging and web services with a focus on maintainability and scalability. He gives training classes on complex concepts and frameworks that provide functionality to large-scale enterprise solutions. He has bootstrapped development on mission critical systems for several Fortune 500 companies.

He has reached committer status on Apache Karaf and is a contributor to Camel. He received a Bachelor of Science degree from DeVry University after his tour in the army.

I'd like to thank my wife, Christina, and kids for their unending support throughout my career. Thanks also to the open source communities for making high-powered software accessible to the masses.

Jamie Goodyear is an open source advocate, Apache developer, and computer systems analyst with Savoir Technologies; he has designed, critiqued, and supported architectures for large organizations worldwide. He holds a Bachelor of Science degree in Computer Science from Memorial University of Newfoundland.

Jamie has worked in systems administration, software quality assurance, and senior software developer roles for businesses ranging from small start-ups to international corporations. He has attained committer status on Apache Karaf, ServiceMix, and Felix, and is a Project Management Committee member on Apache Karaf. His first printed publication was co-authoring Instant OSGi Starter, Packt Publishing, with Johan Edstrom followed by Learning Apache Karaf, Packt Publishing, with Johan Edstrom and Heath Kesler.

Currently, he divides his time between providing high-level reviews of architectures, mentoring developers and administrators with SOA deployments, and helping the Apache community grow.

To Laura and caffeine, my companions through many a long night of writing.

I'd like to thank my family and friends for all of their support over the years. I'd also like to thank all the open source communities that have made Apache Karaf possible.

Johan Edstrom is an open source software evangelist, Apache developer, and seasoned architect; he has created Java architectures for large, scalable, high transaction monitoring, financial, and open source systems. He is a trained electronics engineer with a penchant for fractal geometry.

He has worked as a development lead, infrastructure manager, IT lead, and programmer, and has guided several large companies to success in the use of open source software components. Lately, he has been helping some of the world's largest networking companies and medical start-ups achieve high availability, scalability, and dynamically adapting SOA systems.

Johan divides his time between writing software, mentoring development teams, and teaching people how to use Apache ServiceMix, Camel, CXF, and ActiveMQ effectively and in a scalable way for enterprise installations.

Johan is the co-author along with Jamie Goodyear of Instant OSGi Starter, Packt Publishing.

Johan is a committer on Apache Camel and Apache ServiceMix and is a Project Management Committee member for Apache Camel.

I'd like to thank my wife, Connee, my daughter, Annica, and my parents, Bengt and Birgitta, for supporting me and cheering us on while writing this book as well as making it possible to work through quite a few nights.

I'd like to thank the Apache Software Foundation, a fantastic place fostering open source development.