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Sun releases Java EE 6



Alex Handy
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December 10, 2009 —  (Page 1 of 2)
Almost 10 years to the day since the 1999 release of Java EE 1.2, Sun announced today that Java EE 6 is ready for business.

In the three years since the last major update to the Java EE platform, a great deal has changed in Java, and EE 6 reflects these changes. Chief among the new features are a slimmed down Web Profile installation of the EE platform, support for RESTful Web services, and the last-minute inclusion of dependency injections.

Sun also released NetBeans 6.8 and GlassFish Enterprise Application Server version 3. Both of these are compatible with EE 6 and include support for new features. GlassFish, for example, is also available in a Web Profile form, and NetBeans 6.8 adds handlers for REST.

The Web Profile form of Java EE 6 is a slimmed-down installation of the Java EE ecosystem. Built in response to developer complaints over the years, Java EE 6 adds the concept of Profiles, which will be targeted installations for specific purposes. Initially, only the Web Profile is available, but Sun has said it is looking into more configurations. The Web Profile version of Java EE 6 installs only the pieces of the language and ecosystem needed to run Web applications, such as JPA and JSF.

GlassFish too can be slimmed down for specific Web purposes. Both the Java EE 6 environment and the GlassFish application server can then be upgraded to the full Java EE 6 stack without the need to change or update applications, said Tom Kincaid, executive director of Sun's Application Platform organization. ”We expect this to be very popular with Web application development and deployment,” he said.

JSR 330 was a latecomer to the Java EE 6 party. This specification for dependency injections in Java originated at Google. JSR 330 came together and was passed through the JCP this fall, a break-neck pace for the JCP to approve a new specification.

From the specification page at the JCP website: JSR 330 created “a set of annotations for use on injectable classes” and “a typesafe, user-friendly injector configuration API that provides an integration point for higher-level dependency injection configuration approaches.”



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