Thursday Mar 24, 2016

DukeScript and Duke Sewing

 “There is no Java on some of the new devices and we wanted to change that” explains Author and JavaOne rock star Toni Epple. He describes the DukeScript project and how you can use it for cross-platform development on mobile, desktop and web browsers. Discover his new project to automatically sew a Duke design.  


Tuesday Jan 26, 2016

New Java Champion Simone Bordet

Welcome the new Java Champion Simone Bordet

Simone Bordet is a Jetty Committer, the CometD project leader and works as Lead Architect at Webtide. Active open source developer, he founded and contributed to various open source projects such as Jetty, CometD, MX4J, Foxtrot, LiveTribe, and others. 

Simone specializes in server-side multi-thread development, J2EE application development, in Comet technologies applied to web development, web network protocols (HTTP, WebSocket, SPDY, HTTP/2) and in high performance JVM tuning. He has been technical speaker at various local and international conferences such as Devoxx, JavaOne, and CodeMotion and he is a co-lead of the Java User Group of Torino, Italy. Read his blogs at https://webtide.com/author/simon/ and follow him at @simonebordet

Learn more about the Java Champion program https://community.oracle.com/community/java/java-champions 

Thursday Mar 05, 2015

New Java Champion: Peter Lawrey

Congratulations to the new Java Champion Peter Lawrey!

Peter has over twenty years experience in IT, and around 15 years experience designing, developing and supporting Java systems. He provides consulting and develops software for trading firms based on the open source code written for OpenHFT. He is also the technical lead for OpenHFT, which is a suite of Apache 2.0 OSS libraries.  

Peter is the founder of the "Performance Java User's Group", a virtual JUG with over 1300 members. He is a top contributor of the Java and JVM forums on StackOverflow.  He has published over 250 articles on Java in his blog Vanilla Java, which has over three million views. "Peter is very generous in sharing his vast knowledge and already has done a great job in championing Java " explains Heinz Kabutz. 

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

Monday Aug 25, 2014

JavaOne Hackergarten (and Others Worldwide)

by guest blogger Andres Almiray

It's with great pleasure that I announce JavaOne will host a Hackergarten this year once more. That's right, you did read it well, the name sticks, we're no longer renaming it to CodeGarten like last time ;-)

At JavaOne 2014, the Hackergarten has a dedicated space at the Java Hub in JavaOne exhibit hall, Hilton Union Square. The space has power, a private Internet network, white boards, and seating for 16. Attendees need to bring their laptops. You may stay as long as they want, from less than an hour to most of the three days. The format remains the same as other Hackergartens. Participants will contribute to open source projects. 

The idea is to gather people around specific topics at the scheduled times. Topics range from Java SE, Java EE, JSRs, pretty much anything Java-related. Contributions can be production code, test cases, documentation, or simply a friendly chat in order to gather feedback. If you want to host a session (help people to work on an open source project), please contact me. The project page is here and will be updated as we fill out the schedule.

We are also running Hackergartens at other conferences. The following ones are already confirmed:

JCrete - Aug 25th (in English)

JavaZone - Sep 9th (in Norsk & English)

JMaghreb - Nov 6th (in French)

Learn more about Hackergartens at Hackergarten.net.

Reprinted from The JavaOne Conference Blog. 

Thursday Aug 14, 2014

walkmod : A Tool to Apply Coding Conventions

You know that applying coding conventions, specially in big projects, simplifies the project maintenance. And there are custom IDE features to configure a set of saving options to apply automatically a given code style. There are also open QA tools (e.g FindBugs, PMD) to check a set of metaprogramming rules, but these never fix the code. This is the reason why Raquel Pau and her team have been working hard to create walkmod, a metaprogramming framework to establish and share set of open coding conventions.

walkmod is a free, open source tool that allows you to design custom coding conventions and apply them as a chain of coding transformations into source files. walkmod supports 3 kind of transformations: (1)templates, (2)scripts or (3)plugins in Java. 

Learn more in this video from Devoxx UK: 

View Pau's slides from Devoxx UK here.

Tuesday Jul 02, 2013

Belgrade Open Source Software Development Center

A new Open Source Software Development Center is open at University of Belgrade Serbia. It centers around using Java & NetBeans as open source projects to learn from and contribute to. Assistant Professor Zoran Sevarac says that not only does the center allow him to teach software development using open source projects, but also "we are improving our University courses based on the experience we get from working on open source code." 

Some of the projects underway are a NetBeans UML plugin; Neuroph (a Java neural network framework, with a NetBeans Platform-based UI); a NetBeans DOAP Plugin; WorkieTalkie (NetBeans chat plugin); and 2D and 3D visualization plugins for NetBeans. Here's video describing the NetBeans UML plugin:

University of Belgrade also has an official university course about open source development, where students learn to use development tools, work in teams, participate in open source projects and learn from real world software development projects.

Students, teachers, and researchers at the University of Belgrade, and any member of the open source community are welcome to come to learn software development from successful open source projects. For more information, you can contact Zoran Sevarac (@neuroph on Twitter). 

Saturday Jun 29, 2013

Open Source Software Development Center at University of Belgrade

A new Open Source Software Development Center is open at University of Belgrade, Serbia. It centers around using Java & NetBeans as open source projects to learn from and contribute to. Assistant Professor Zoran Sevarac says that not only does the center allow him to teach software development using open source projects, but also "we are improving our University courses based on the experience we get from working on open source code." 

Belgrade centerSome of the projects underway are a NetBeans UML plugin; Neuroph (a Java neural network framework, with a NetBeans Platform-based UI); a NetBeans DOAP Plugin; WorkieTalkie (NetBeans chat plugin); and 2D and 3D visualization plugins for NetBeans.

University of Belgrade also has an official university course about open source development, where students learn to use development tools, work in teams, participate in open source projects and learn from real world software development projects.

Students, teachers, and researchers at the University of Belgrade, and any member of the open source community are welcome to come to learn software development from successful open source projects. For more information, you can contact Zoran Sevarac (@neuroph on Twitter).

Monday Feb 04, 2013

FOSDEM 2013



The annual Free Open-Source Developers' European Meeting took place last weekend in Belgium. The free event brought together 5,000 hackers from the open source community. There were 477 speakers and 488 sessions with a mix of keynotes, lightning talks, certification exams and developer rooms talks.


Tasha Carl, Java architect and the leader of the Brussels Java user group, wrote a blog about FOSDEM and the Free Java developer room. She mentioned Java talks and posted pictures making you feel as if you were there. "The Free Java dev room at FOSDEM is since many years the biggest OpenJDK meet-up around. You can not only see, but really high-five celebrities like – this year – Mark Reinhold, Chief Architect of the Java Platform Group at Oracle, Sean Coffey, Oracle JDK engineer and maintainer of OpenJDK 7u, Steve Poole, developer and evangelist working since ever  for IBM on the JVM, Simon Phipps, Andrew Haley, Charles Nutter, JRuby lead developer speaking about InvokeDynamic,…" she commented.


In another blog, Mani mentioned that "the OpenJDK topic has got massive coverage with 17 speakers, speaking and holding events covering various topics." Java community leaders including Martijn Verburg and Ben Evans were involved in the Java track. In addition to Brussels JUG, members of LJC JUG, CEJUG and others participated at the event.


In her blog, Heather VanCura shares the Java Community Process (JCP) presentation titled "JCP State of the Nation and Future Directions," as well as links to JCP.Next and the community program Adopt-a-JSR programs.


Friday Feb 01, 2013

The JCP Evolution!

Recent changes to the Java Community Process (JCP) program "focus on the way the organization itself is structured and organized" explained Patrick in this interview.  The changes will result from the implementation of three Java Specification Requests (JSRs). The first JSR, the JSR 348, makes the process more open and transparent to facilitate developers' participation. It was released a year ago and Heather witnessed increased transparency in projects,  additional participation and a simplified release process. "They are using public issue trackers and public discussion alias on projects. More people from the community are commenting and participating in the JSRs. The process of releasing final and maintenance releases is more agile," she commented.

She explained the different options for developers' participation in the JCP. Java user groups may become JCP members at no charge and contribute as a group. Individuals and user groups can contribute to the community initiative Adopt-A-JSR. Developers can give feedback on the transparency of a JSR process. Individuals, corporations and non-profit organizations (JUGs for example) can join the JCP. They then can comment on specs, join an expert group and become a spec lead





Information about the JCP program is available at jcp.org. Watch the recent presentation about Adopt-a-JSR with Martin Verburg and Java EE 7 JSR projects with Arun Gupta

Thursday Jan 24, 2013

Nordic Nighthacking Tour

From Jan 25th to Feb 7th,  Java Evangelist Stephen Chin will be traveling across the Nordic countries and doing live video streaming of the journey. Along the way he will visit user groups, interview interesting folks, and hack on open source projects. The last stop will be at Jfokus 2013.

You can join Stephen for the journey by watching the live stream in 3 easy steps:


  1. Follow @steveonjava on Twitter to find out when the broadcast is live.

  2. Come to the NightHacking UStream Channel to watch the free live feed.

  3. Interact with Stephen Chin and folks he is hacking with via twitter using hashtag #nighthacking.

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