Thursday Oct 29, 2015

A New Way to Program in Java EE 8

By Roger Smith

Cloud Services for Developers

I sat in today on an engaging session with Java EE expert David Blevins, who is a newly crowned Java Champion for his work in Open Source and Java EE for more than 10 years. As a member of the EJB, CDI, JMS, Java EE Security JSRs, and Java EE 6, 7 and 8 Expert Groups, he’s worked hard to make Java EE as simple, testable and lightweight as Java SE.

The next Java EE 8 edition, due in 2017, will focus on HTML5, cloud enablement, use of the model-view-controller framework and improved security. Another important selling point will be ease of use, which was the theme of much of Blevins's talk.

According to Blevin, the first era of Java EE was XML-driven where we used "tons and tons of deployment descriptors." The second era of Java EE, brought about by Java 5, was annotation-driven and very declarative by nature. With the advent of Java 8 features such as lambdas and method references, "we'll have the opportunity to take a look at all the Java EE APIs again and rewrite them to fundamentally reduce the ceremony we have to deal with when we write applications," he said. "I have some predictions: Java EE will shift from declarative to the programmatic since annotations are very declarative approach. With lambdas and method references, the approach is more to do it all at runtime."

He walked through a code example that highlighted a security example where one EJB was annotated as a Manager and another as Employee. "With lambdas and method references, you'll be able create a Manager EJB and an Employee EJB, and to test and run your code under many different security identities."

The impact of these kinds of capabilities in the new Java EE release means that there will be a shift in emphasis in Java EE programming from the Component-side to the Caller-side and that logic will become more mobile, Blevin concluded.

He also said that Java Community Process is a now an open process, which it wasn't a few years ago, and developers can now have an open say in the Java EE specification in JSR 366.

"If you don't vote, don't complain."

Tuesday Dec 11, 2012

Call for Papers for both Devoxx UK and France now open!

The two conferences are taking place the last week of March 2013 with London on March 26th and 27 and Paris on March 28th and 29th. Oracle fully supports "Devoxx UK" and "Devoxx France" as a European Platinum Partner. Submit proposals and participate in both conferences since they are a two-hour train ride away from one another.

The Devoxx conferences are designed “for developers by developers.” The conference committees are looking for speakers who are passionate developers unafraid to share their knowledge of Java, mobile, web and beyond. The sessions are about frameworks, tools and development with in-depth conference sessions, short practical quickies, and bird-of-a-feather discussions. Those different formats allow speakers to choose the best way to present their topics and can be mentioned during the submission process

Devoxx has proven its success under Stephan Janssen, organizer of Devoxx in Belgium for the past 11 years. Devoxx has been the biggest Java conference in Europe for many years. To organize those local conferences, Stephan has enrolled the top community leaders in the UK and France. Ben Evans and Martijn Verberg are the leaders of London Java User Group (JUG) and are also known internationally for starting the Adopt-a-JSR program. Antonio Goncalves is the leader of the Paris JUG. He organized last year’s Devoxx France, which was a big success with twice the size first expected.

The organizers made sure to add the local character to the conferences. "The community energy has to feel right," said Ben Evans and for that he picked an "old Victoria hall" for the venue. Those leaders are part of very dynamic Java communities in France and in the UK. France has 22 JUGs; the Paris JUG alone has 2,000 members. The UK has over 50,000 developers working in London and its surroundings; a lot of them are Java developers working in the financial industry. The conference fee is kept as low as possible to encourage those developers to attend. Devoxx promises to be crowded and sold out in advance. Make sure to submit your talks to both Devoxx UK and France before January 31st, 2013. 


Insider News from the Java Team at Oracle!



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