Tuesday Apr 21, 2015

JavaOne Registration Now Open

The JavaOne conference brings together Java experts and enthusiasts for an exceptional week of learning and networking focused entirely on all things Java. With more than 500 sessions, you will learn from the most innovative and diverse Java content. You can't afford to miss it! October 25-29, 2015, San Francisco. Register now!

With a full conference pass, you get:
Access to more than 500 JavaOne sessions, Birds-of-a-Feather (BOF) sessions and JavaOne Hands-on Labs (HOLs)
Keynote sessions for JavaOne and Oracle OpenWorld
Scene and Be Heard presentations
Java User Group Forum
Exhibition Halls at JavaOne and OpenWorld
 • Access to the Java Hub 
JavaOne Welcome Reception
Oracle Appreciation Event
Specials at the JavaOne and Oracle OpenWorld Bookstores
Access to the It’s a Wrap! party

The call for proposals is open until April 29. If your session is accepted, you will receive a full pass
You will save $600 with the Super Saver rate, if you register before May 31
Register between 5 to 13 attendees and receive a savings of up to 20 percent off the price of each registration. Register 14 or more attendees and receive a savings of up to 28 percent off.
Employees of a national/federal, state, provincial, or local government entity, including public higher education institutions can benefit from government rate

Friday Apr 17, 2015

Java Magazine New Edition


Want to know how to optimize Java performance, whether your applications are in a cloud environment or on the JVM?  

In this new edition, Kirk Pepperdine examines parallelism using the fork/join framework to boost performance. Michael Heinrichs, in “The Quantum Physics of Java,” looks at modern chip design and its effect on Java programs. Chris Newland discusses the effects of small source code changes and Java HotSpot VM switches in Java just-in-time (JIT) compilation, and Josh Juneau explores incorporating performance tuning into the development lifecycle. Our JCP Executive Series features Anil Kumar, a performance architect at Intel. And, check out the big data panel from JavaOne 2014. 

Finally, our cover story showcases Netflix, which fulfills 2 billion content requests every day. The company can do so because most of the services running in its architecture are built on Java and the JVM.

Don’t miss this new edition of the Java Magazine

Wednesday Apr 15, 2015

How to Contribute to the Java Platform

In this interview, Heather Van Cura gave an update about JCP. She mentioned new JSRs for Java EE 8, and Java SE 9, and discussed changed to JCP.next

Community members Simon Maples, Mani Sarkar, and Daniel Bryant pesented a vJUG session about the Adopt OpenJDK project. They describe how to contribute to OpenJDK project. Mani presented a hands-on demo on how to contribute to Java 9  Learn more

Tuesday Apr 14, 2015

Perspectives on Docker

Want to know why and how to use Docker? Docker is a popular tool to build and deploy applications across environments. In these three interviews, you will learn about the benefits of Docker, its integration with other tools, and teams using the tool for different applications.

Jfrog CTO and co-founder Yoav Landman explains the use of Docker with Chef, and Vagrant in the development of a Bintray application. 


Conference speaker Matthias Grüter explains why Docker works well with the JVM 


Conference speaker Roland Huss discusses the benefits of integration tests. 


Monday Apr 13, 2015

Devoxx France 2015 Explores The Future of Technology

2500 developers attended 4th Devoxx France this year, an increase of over a thousand attendees from last year. The organizers announced a new member of the Devoxx family: Devoxx Morocco, a conference that will take place in Casablanca during the third week of November.

In this 20th year of Java, the theme of Devoxx France 2015 was about innovations in technology over the next 20 years. In his keynote, Java architect Brian Goetz described a development approach that keeps up with the technical needs of developers. Java 9 will deliver a modular platform tuned to hardware requirements. CEO Quentin Adam of Clever Cloud considers that engineering roles are entering an age of specialization. Dan Allen, an open source advocate, author, and world renowned speaker, discussed the responsibility of developers to preserve digital information for future generations. CCO Stephan Tual discussed Ehereum, an open source and decentralized platform allowing the creation of P2P businesses with new infrastructure, communication and privacy.

Rodolphe Gelin, research director of Aldebaran, explains that Romeo, a new line of humanoid robots will become a companion capable of understanding emotions and anticipate situations in the every day life. “Robots are an additional platform for development” he commented. Pierre Yves Oudeyer, research director at INRA, discussed cutting-edge artificial intelligence research, in which robots are programmed to be curious and learn by experimenting like children. They become aware of themselves and their environment. They can even develop their own language. The humanoid robot Poppy is an open source robot for laboratories and research centers to collaborate on the artificial intelligence project. Eric Filiol, the head of ESIEA research lab called on developers’ civic responsibility to educate politicians who are passing laws about internet, and privacy without understanding technology. He made the room laugh when he suggested that “after Devoxx4Kids, we really need a Devoxx4politicians.”

All the keynote speakers agreed that no one can predict the disruptive technologies in the next 20 years like no one could have predicted the internet and its ubiquity in our lives today. Again this year was Seed Networking, where developers, startups and venture capitalists discuss business opportunities. New this year was the Café Philo to discuss about the digital world and the future of society. Devoxx4kids took place last Saturday. 50 kids were learning Java using Scratch and Lego Mindstorms.

Thursday Apr 09, 2015

Devoxx France and 20 years of Java

In this interview, Antonio Antonio Goncalves talks about the 4th edition of Devoxx France. The keynote speakers this year discusses the next 20 years of Java 

Tuesday Apr 07, 2015

Devoxx France 2015

Taking place this week April 8 to 10 in Paris is Devoxx France, one of five Java developer conferences in Europe. The conference is in English and French and all the sessions will be available on Parleys website a couple of weeks after the conference. 

This year, Oracle is a Platinum sponsor. Check out the Oracle Java sessions:  

Java Mission Control for Earthlings
April 9, 15:10 - 16:00
James Weaver, Consulting Member of Technical Staff, Oracle

Java 9 Plan
April 9, 16:35 – 17:25
Brian Goetz, Java Language Architect, Oracle
Paul Sandoz, Software Developer, Oracle

Java EE 7 Batch Processing in the Real World
April 9, 17:40 - 18:30, Neuilly 252 AB
David Delabassee, Software Evangelist, Oracle

Java 8 EE, A Snapshot Overview
April 9, 17:40 - 18:30, Neuilly 252 AB
David Delabassee, Software Evangelist, Oracle

Java EE Birds of Feather Session
April 9, 20:30 – 21:30, Neuilly 252 AB
David Delabassee, Software Evangelist, Oracle

Domotique et Java, Birds of Feather Session
April 9, 21:30 – 22:30, Paris 202-203 Lab
David Delabassee, Software Evangelist, Oracle

Batch API (JSR 352) Hands-on Lab
April 10, 11:00 – 13:50, Paris 224M-225M Lab
David Delabassee, Software Evangelist, Oracle

Project Jigsaw
April 10, 14:05 – 14:55, Maillot
Paul Sandoz, Software Developer, Oracle

IoT, Java, and Autonomous Drones
April 10, 14:05 – 14:55, Room: Amphi Bleu
James Weaver, Consulting Member of Technical Staff, Oracle

Finally, Security API JSR 375
April 10, 15:10 – 16:00, Room: Paris 241
Alex Kosowski, Principal Member of Technical Staff. Oracle

If you attend the conference, please swing by booth #P04 and chat with Java experts who will be onsite answering questions.

Java Day Tokyo 2015

by Guest Blogger Stephen Chin

Java Day Tokyo is the largest Java conference in Asia with a very long history of supporting the local Java community. We will be live streaming interviews from the conference with noteworthy Java community speakers from Japan. Join the live stream at: http://nighthacking.com/

Java Day Tokyo はアジア地域の中で最も大きなカンファレンスです。今回、日本から Java コミュニティの著名な方々をお招きし会場からインタビューの生ストリーミング配信を行います。ストリーミングはこちらからご覧いただけます。
http://nighthacking.com/

Thursday Apr 02, 2015

Updates to the Java Troubleshooting Guide

By Guest Blogger Poonam

Crossed post from: https://blogs.oracle.com/poonam/entry/updates_to_the_java_troubleshooting 

Mattis Castegren who is my manager at Oracle, and is the guest writer for this blog post would like to share some details on the Java Troubleshooting Guide. Here's what he has to say:--

With the release of JDK 8, the official Java Troubleshooting Guide got a big overhaul. All pages were looked over and updated for JDK 8, and the two previous guides for the JVM and for Desktop Technologies were merged into one.

In the last month, with the release of 8u40, we have launched the next phase in this project. In this phase, we have added a lot of chapters about the new supportability tools that have been introduced in Java over the last few years.

The biggest new additions are a set of pages on how to use the Java Flight Recorder (JFR). If you haven't used JFR before, you should definitely check out the following chapters:

2.3 What are Java Flight Recordings

2.4 How to Produce a Flight Recording

2.5 Inspect a Flight Recording

These chapters contain step by step instructions on how to record a JFR and also goes through what to look for in a recording to find common issues. The chapters contain lots of screen shots and details on how to interpret the data.

Once you have learned the basics, you can also look at the following two chapters on how to use JFR to debug specific issues:

3.1 Debug a Memory Leak Using Java Flight Recorder

4 Troubleshoot Performance Issues Using JFR

When you have read through these chapters, you will be ready to use this great tool to find bottle necks in your own application.

Other new additions to the troubleshooting guide is a new chapter on how to set up Java for better troubleshooting: Prepare Java for Troubleshooting, as well as a lot of minor updates and clarifications.


JavaLand4Kids Celebrates A Successful Premiere!

14 boys and girls of 3rd and 4th grades discovered that programming is easy during JavaLand4Kids. "For the children it was really a great experience and it was great to see how much fun they had exploring" explained Jörn Diercks, one of the teachers.  

In one workshop, girls and boys learned the programming language "Scratch", which has a graphical user interface. This language uses colored blocks that can be dragged & dropped to program sounds, images, movements and more. This allowed young developers to quickly learn the basics of programming and to develop their first games.

In a "QuadroCopter" workshop, children controlled a drone that was programmed specifically for this event. After they learned the basic commands, they were able to complete many maneuvers. The girls and boys also showed great interest in the electronics kit "TinkerForge". The electronic components can be combined with Legos. 

“From now on, JavaLand4Kids is going to be an integral part of the JavaLand Conference. So, this is a call to arms for my friends and speakers” commented Markus Eisele, who is the one of the organizers of JavaLand.  Visit his blog for more details. Get in touch with Markus if you want to get involved with the next JavaLand4Kids.

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