Welcome the new Java Champion Henri Tremblay!

Henri Tremblay has been developing with Java since 1998. In 2003, he became a main contributor of  the EasyMock open source project and created the concept of class mocking. He also invented and coined the term "partial mocking". He is now the lead developer of EasyMock and Objenesis, both of which are projects used by numerous frameworks. Ojenesis is a technical project allowing class creation without calling the constructor. He has also contributed to many Java open source projects. He is currently helping on the JEP 260: Encapsulate Most Internal APIs.

Henri is also the founder of the PerfUG, a user group dedicated to performance. The group currently has more than 400 members. It recently received Java speakers including Kirk, Heinz, Richard Warburton and Jean-Philippe Bempel. He is now involved with the Montreal JUG. 

Henri is a frequent speaker at Java conferences. One of his JavaOne sessions was a hands-on lab with Java champions Heinz Kabutz, Kirk Pepperdine, Ben Evans and Martijn Verburg. Follow him @henri_tremblay 

The Java Champions are an exclusive group of passionate Java technology and community leaders who are community-nominated and selected under a project sponsored by Oracle. Learn more about Java Champions

Welcome the new Java Champion Marcus Lagergren!

Marcus Lagergren has been involved with the Java platform since the alpha versions. He worked at Appeal Virtual Machines, a performance-oriented start-up offering alternatives to byte code interpretation, slow-running thread implementations and non-native code. As one of the principal architects of the JRockit JVM, Marcus helped make sure that Java became a good alternative to writing programs in native languages. 

Marcus contributed to virtual implementations of Java on hypervisors, when virtualization was still in its infancy, and demonstrated with the JRockit VE project that virtual solutions are good alternatives to physical platforms.  

Marcus worked as a member of the Java language team implementing Java 8. He worked on improving support for dynamic languages on the JVM. Being a performance engineer at heart, Marcus demonstrated that dynamic languages, thanks to invokedynamic, achieve similar performance on the JVM compared to languages with a static type system. 

Marcus has co-authored a book on JVM internals, “Oracle JRockit - The Definitive Guide”. He is also a frequent speaker at Java conferences. Follow him @lagergren

The Java Champions are an exclusive group of passionate Java technology and community leaders who are community-nominated and selected under a project sponsored by Oracle. Learn more about Java Champions

Which Java SE 8 APIs should you use in your Java EE 7 applications? It’s been two years since Java SE 8 was released, and Java EE 7 has been around almost three years. How can you combine both technologies and boost your productivity? Of course your application server provider should support both technologies.

In his presentation, David Delabasse explains how to use eight Java SE APIs that will help you with your Java EE applications. He shows a demonstration on how to implement each of the following Java SE libraries: Date and Time APIs, JPA converters, Java Server Faces, annotations, optional, string joiner, stream API, and Nashorn Javascript Engine. 

This presentation is part of the next Virtual Technology Summit sponsored by the Oracle Technology Network. Register! It is free. For your convenience, we offer the event in three time zones as follows: 

• Americas - March 8th- 9:30am to 1:00 PST - Register
• APAC - March 15th - 9:30am to 1:00pm IST - Register
• EMEA - April 5th - 9:30am to 1:00pm BST - Register

This VTS provides two tracks on Java SE and Java EE with six hands-on sessions. Check out the full VTS agenda here  

Java Community Lead Stephen Chin and Freelancer Sebastian Daschner are touring Java User Groups in Germany. And, you can watch them live at NightHacking during JavaLand. 

Sebastian will give an introduction of RESTful web services with Hypermedia as the engine of application state, what the benefits and costs of using this approach are and show different approaches how to realize such REST services with JavaEE 7 and JAX-RS. Most of the time will be spend demonstrating different implementations (plain JavaEE 7, existing libraries, etc.) with live coding. The session is held in English. 

3/3/16    JUG Berlin
3/4/16    JUG Hannover
3/5/16    JUG Münster
3/6/16    JUG Dortmund
3/8/16    JavaLand
3/9/16    JavaLand
3/10/16  JUG Darmstadt
3/14/16  JUG Bodensee

There will be a Java 9 Track this year at EclipseCon, the annual Eclipse North American conference. The conference will be held March 7-10, 2016 in Reston, Virginia, just outside Washington, D.C. .

You will learn first-hand about project Jigsaw, modularity, JDK enhancement proposals, and Java 9 support in Eclipse. The Java 9 track sessions are:  

• Java 9's other puzzle pieces by Erik Costlow 
• Preparing your code for JDK 9 by Erik Costlow 
• You, me and Jigsaw by Thomas Schindl
• Java 9 support in Eclipse by Jay Arthanareeswaran [IBM] and Manoj Palat

Learn more about the Java 9 release and check out the Early Access builds

Not sure whether microservices make sense for your project? Will a microservices architecture improve the performance and scalability of your project? In the Down to Earth Microservices with Java EE session, Reza Rahman looks beyond the buzz and gives you a concrete approach to microservices that will help you think about how to implement them.   

Reza will explain the ins-and-outs of microservices within the well-established context of SOA and takes a close look at when it makes sense to implement them. He will walk you through an example showing how to use the lightweight Java EE programming model with Java EE. The Java EE programming model and APIs are aligned with microservices. You’ll learn how APIs such as JAX-RS, WebSocket, JSON-P, Bean Validation, CDI, JPA, EJB 3, JMS 2, and JTA can help you build microservices. The microservices architecture style fits well within the Java EE framework and taps into Java knowledge that you currently have.  

This presentation is part of the next Virtual Technology Summit sponsored by the Oracle Technology Network. Register, it's free! For your convenience, we offer the event in three time zones as follows: 

• Americas - March 8th- 9:30am to 1:00 PST - Register
• APAC - March 15th - 9:30am to 1:00pm IST - Register
• EMEA - April 5th - 9:30am to 1:00pm BST - Register

This VTS provides two tracks on Java SE and Java EE with six hands-on sessions. Check out the full VTS agenda here

The Atlanta Java User Group is hosting DevNexus, its annual conference, from February 15 - 17 in Atlanta.  Join Stephen Chin at NightHacking during the event or online at nighthacking.com as he interviews speakers and experts at DevNexus.

If you are attending the conference, come by the Oracle booth (#18) and learn about Java, IoT, and Java Cloud.  Grab a cup of great coffee at the Raspberry Pi Java SE Embedded Coffee demo and register for the free cloud trial 

It's long been known that an aptitude for programming is correlated with an appreciation of music, notes James Weaver. In his new series of articles, Making Music with Java, Weaver explains this correlation 

In Part 1, "Making Music with Java: I’ll be Bach", he uses a musical application he wrote, Counterpoint Composer, to explore the tasks involved in migrating a procedural C program into an object-oriented Java program. Before diving into the details, he provides an introduction to music counterpoint  and a high-level overview of the architecture of Counterpoint Composer. In the next part of the series, he plans to drill down into the application's architecture and explore more code.

To see a musical example of migrating C code to Java, read the article.