O'Reilly logo

Java EE 7 Developer Handbook by Peter A. Pilgrim

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Upgrading to Java EE 7 from J2EE versions

Java EE 7 is now an immense step up in productivity from the J2EE 1.4 specification, yet there are many businesses out there still reliant on source code with legacy practices. Java EE 7 strongly leans on the annotations, therefore we recommend your business upgrades their Java SE environment to at least JDK 7. In February 2013, Oracle Java SE 6 declared End-of-Life of public releases (http://www.oracle.com/technetwork/java/eol-135779.html).

The serious actual effort of upgrading J2EE to Java EE is proportional to the number of lines in your application, whether it is based at all Java SE 5 or better, using generics, enumerations, and annotations. It depends on the interaction complexity in your existing ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required