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Gregg Sporar has been a software developer for over twenty years, working on projects ranging from control software for a burglar alarm to 3D graphical user interfaces. He has been using Java since 1998 and his interests include user interfaces, development tools, and performance profiling. He worked as a Technology Evangelist for several years at Sun Microsystems and is currently a Senior Product Manager at Smart Bear Software.

Raghavan "Rags" Srinivas is a Technology Evangelist at Sun Microsystems. His general area is in distributed systems, with a specialization in mobility and security. He has spoken on a variety of technical topics at conferences around the world and teaches graduate classes in the evening. He publishes a standards column and represents Sun at a number of standards bodies. He also serves in the organizing committee for several industry-wide technical conferences.

Rags brings with him about 15 years of software development experience. He worked for Digital Equipment Corporation before joining Sun. He has worked on several technology areas, including internals of VMS, Unix and NT.

Rags holds a Masters degree in Computer Science from the Center of Advanced Computer Studies at the University of Louisiana at Lafayette.

He enjoys running, hiking and eating, especially spicy food.

James Stauffer is a senior software engineer for SPS Commerce. His
14 years there have been mostly maintaining and enhancing one Java
enterprise web application. He wasted almost all of his money from
high shool graduation gifts adding a 16 MB RAM chip to a Windows 3.11
machine that already had 4 MB and learned the important lesson of
"right sizing".

Daniel Steinberg runs and is former editor-in-chief of

Rob Stephenson is an educator, eLearning architect and consultant living in San Francisco. He is Community Manager of the Global Education and Learning Community (GELC) on In his spare time Rob is Assoc. Prof. of Biological Sciences at Wayne State University in Detroit, MI, where he has taught an online physiology class for the last seven years. Rob is a pioneer of the "open course" movement: applying the principles of openness and collaborative development to create interactive learning materials. He founded the first open course project, the Harvey Project, an international collaboration to build free learning objects for physiology (about half of them Java applet simulations). He is the organizer of OpenCourse.Org, an NSF-funded platform to support open course projects (think CollabNet or SourceForge for learning object developers). Rob holds an A.B. in physics from Princeton, a Ph.D. in neurophysiology from MIT and Java programming certification from Sun Microsystems.

Matt Stevens is a senior staff engineer at Sun Microsystems. While at Sun Matt has been leading teams in both services and engineering as part of sales, marketing, services and product development aspects of Sun's business. As a principal consultant, practice manager, senior engineer and currently chief engineer of Sun Learning Services he has had the privileged experience of rotating through all aspects of Sun's business from customer facing, sales, evangelism, research and development and business system operations. Matt's recent work focuses on service oriented architectures and many foundational technologies within the Web 2.0 paradigm shift including RESTful web service architectures, dynamic scripting languages, utility computing (SaaS) and discrete behavior based social networks.

Henry Story is currently working on the open source BlogEd blog editor and the Semantic Web. During the dotcom craze he developed, named and supported the AltaVista babelfish machine translation service. Prior to that he studied philosophy in London, where he got to read everything ever published by David Lewis. He can often be found cycling around Europe with a laptop on his back.

Louis Suarez-Potts is the community manager of and chair
of the governing Community Council. The senior community development
manager at CollabNet, Louis holds a Ph.D. from the University of California Berkeley. Besides open source, his interests include US culture at the end of the 19th and beginning of the 20th centuries.

Eitan Suez is a programmer living and working in Austin, Texas. He has been programming in Java since 1995 and is a certified Java programmer. Eitan developed a Java API documentation tool called dbdoc featured on in July 2002. Eitan often speaks at the series of Symposiums on Java organized by The Complete Programmer Network. He is also active with the Austin Java Users Group.

Marina Sum, having been a writer for Sun since 1989 and a staff writer for
Sun Developer Network for several years, blogs mostly on Sun-sponsored open-source projects.

Evan Summers lives in Cape Town and plays Java, PostgreSQL and Linux. Most interested in crypto, systems monitoring and BI right now. Past interests include Swing, and future interests include mobi web.

Dionysios is a senior web engineer at the Network Management Center
of the NTUA and a freelance consultant. His research interests concern
the area of Rich Internet Applications, Scalable Web Applications,
Multi-channel access and Web Services. He is a frequent contributor to
open source projects and a seasoned technical writer. When not
spending quality time with his baby daughter he can be contacted at
synodinos [AT]
Dionysios homepage

Petar Tahchiev is a software engineer from Bulgaria, mainly woking with project automation tools like Ant, Maven(1x, 2x). He is also interested in web programming with JSP, Servlets, Struts framework, JSTL, and related technologies. He graduated Mathematician from the Sofia University, where now he leads number of different seminars, like Linear Algebra, Mathematical Analysis, Introduction To Java Programming. He has also authored articles about java programing and project automation, and is a constant lecturer at some of the biggest open-source conferences in Bulgaria.

Douglas Tait received his B.S. in Computer Sciences from Temple University and his M.S.
in Computer Architecture and Network Design from the University of Pennsylvania.
His computer experience includes companies such as Unisys, Telesciences, General
Electric and Martin Marietta. He spent several years developing device drivers for
SS7 protocol stacks and became the program manager for AIN projects at
MCI and Sprint. At Sun he founded the JAIN Initiative and continues to drive
Java into Communications.

Bruce Tate is a kayaker, mountain biker, father, author, and Java programmer in Austin, Texas. His five books include Better, Faster, Lighter Java and best-selling Bitter Java. His 17 years of experinece include stints at IBM, two failed startups, and his own independent consulting practice called J2Life, LLC.

Frans Thamura, the most Java-man on earth, lives in Jakarta, in Java island, Indonesia.

He owns several Java companies, is a JUG Indonesia Leader, Java Champion and
Oracle Regional Director, and a JEDI implementator in Indonesia under JENI Project, a goverment owned Java education services

Founder of Meruvian, jTechnopreneur Program.

Mobile: +62 855 7888 699
Email: frans at meruvian dot org

Juggy, The Java Finch, is a member of a strong and numerous family of Java users and likes
flying and hot climates, although he' s willing to go everywhere to do Java Evangelism.
Juggy is a Java Finch, native of the Java Island in Indonesia, and also
know as the Java Rice Bird. Although his impressive beak look quite dangerous, Juggy is in fact
peaceful and go along very well with other species, even ones that use different languages.
Juggy is an official representative of the Java User Groups Community, and has visited
many places to discuss and promote Java Technology.

Gary Thompson is Program Manager for He has a strong personal interest in encouraging the use of distributed collaborative development platforms like in an academic setting. He has been researching Distributed Collaborative Software Development for three years at San Francisco State University in San Francisco, CA. and has two papers published on the topic, Teaching Practical Software Engineering and Global Software Engineering: A Case Study and Recommendations published by Frontiers in Education (ACM, IEEE) and Teaching Practical Software Engineering and Global Software Engineering: Evaluation and Comparison published by ACM SIGCSE He is currently writing a Masters Thesis on the topic.

James Todd is a member of the JXTA Engineering team at Sun Microsystems.

Lucas Torri is a Brazilian software developer of a digital convergence company called Praesto Convergence, where he's worked with Java ME since 2005. He studies Computer Science at Federal University of Santa Catarina and is one of the owners of the Marge Project ( Besides Java related stuff, likes to read things about smart environments and to watch his favorite soccer team playing: Grêmio FBPA.

Alex Toussaint is a Senior Product Manager at BEA Systems. Alex is part of the AquaLogic BPM team with responsibilities for product planning and strategy. During his five years at BEA he has held various positions in product management, including BPM, content management, portal federation, portal framework, and emerging portal standards.

Trung Duc Tran is the architect for NetBeans at Sun Microsystems. In
recent years he led the team which designed and implemented the new
windowing system and the Ant-based project system in NetBeans. He likes
simplicity, laziness and being under pressure.

Gustav Trede started at early age with x86 protected mode asm, "doing the usual 3D stuff."
He switched to java 1997 at the university. Since then, he has mostly been working on j2ee, swing apps + syncing local db cache (using comet for that lately).
He has a special interest in concurrency, high availability and performance aspects in general.
He enjoys coding anything that is complex and mentaly challenging.

Having started programming as a 14 year old in the early 80th I've done lots of things with computers. Starting from manually coding bits'n bytes going through a long period of C/C++ that accompanied my student-life at the University of Wuerzburg where I got my degree in Physics in 1993. This period extended through the first few years of work which included some years of work with the millions lines of code of Lotus Domino.
In the late 90'th I finally I became addicted to Java and J2EE programming, wrote my own JSP-container and became member of JSTL-expert group (JSR52).
Currenty I'm focused on bringing the best of JSF and AJAX together.
For contributing quite some lines of code to project jMaki SUN awarded me a glassfish-champion-award at Java One 2007.
Other projects that I'm interested in to contribute to are dynafaces and facelets.

Jaroslav Tulach is the founder and initial architect of NetBeans, which is not just a well known IDE, but also the first modular desktop application framework written in Java. However, as NetBeans has been the flagship software product of Sun Microsystems for a while now, you don't have to worry that content of the TheAPIBook might not be widely applicable and understandable.

Doug is Chief Architect of the Java Games Technologies group at Sun
Microsystems. Previously,
he was one of the architects of Java 3D. He also worked in the graphics
research group at Sun
focusing on programmable shading and advanced rendering techniques.
Throughout his 14 years
at Sun, he has worked on products such as OpenGL, XGL, and the X
server. He is also an
avid gamer.

Manisha Umbarje is a member of the product engineering group for the Sun Java System Application Server.
She has contributed to couple of modules in GlassFish such as Diagnostic Service and Java EE JBI Service Engine.

Rich Unger is a Senior Member of Technical Staff at,
working on their cloud computing platform. He is also a
contributer to the NetBeans open source project.

Rodrigo Urubatan is a highly recognized consultant, technical leader, senior architect and speaker in Brazil. As a senior consultant at Advanced IT and Technical Director at Tech Office IT he has been designing and developing Java EE applications for several industries in health, B2C and B2B markets. He has been using Java since 2002 and works in the IT market since 1997. Furthermore, Urubatan is a frequent Java speaker at events and universities in Brazil, such as JustJava, FISLI, Maratona4Java, UNISC, ULBRA. In 2003 he joined the coordination of RSJUG (a Java Users Group at brazil) and is now the Jug Leather at this JUG. He leads the spring-annotation project at, and cooperates with other open source projects such as Spring Framework, Eclipse, Greenbox, GUJ, and JNuke.

Alexey Ushakov is a member of java2d team currently working on several java FX projects. He has 14 years of industry experience and has been working for Sun since 2000. In his spare time, Alexey can be found rollerblading.

Sekhar Vajjhala is a senior staff engineer at Sun Microsystems. He has
been working on data binding for W3C XML Schema and is the
specification lead for JAXB. He has represented Sun on the Web
Services Interoperability Organization (WS-I) Schema Work Plan
Group. Prior to JAXB, he has worked on various security related
technologies and specifications.

He holds a B.S. in E.E. from I.I.T. Kanpur, India and M.S. in Computer
Science from
University of Wisconsin, USA.

Mike Van Geertruy is the co-founder of FESI (also call FossESI), the Free and open source software Enterprise Solutions Institute. Mike and his group of like-minded merry men and women study new and cutting edge open source technologies, and thier impact on existing enterprise systems.

David Van Couvering has spent his engineering career crossing the bridge between databases and the middle tier world of application servers, Java and distributed systems. He was the original architect for the Sybase J2EE application server and for the first release of the clustered Sun Java Application Server Enterprise Edition. Currently he is involved in database technology at Sun, working with the Clustra team in Norway, and is a committer to the Apache Derby open source database. He lives in Berkeley and his favorite pasttimes are coding, meditation and spending time with his daughter.

Glenn Vanderburg is a consultant with Delphi Consultants in Dallas, Texas. An early adopter of Java, he wrote the first advanced Java programming book, published in early 1996. Glenn speaks across the country on a wide variety of software topics, and enjoys helping his customers build powerful and cost-effective solutions.

Greg Vaughn is a self-titled software craftsman, author and speaker in
Dallas, Texas. His background in physics and prototype-based OO lend a
different framework for understanding software development issues. He's
been immersed in Java since 1997, fondly remembering those early days with
jdk 1.2 and swing betas. His interests include refactoring, unit testing,
user interface design, and concurrency. He's been known to evangelize
agile methods to his co-workers whenever possible.

Miguel Vega, Software designer and developer from Bolivia.