Sun Java System Application Server Enterprise Edition 8.1 2005Q2 Upgrade and Migration Guide

Incompatibilities in the J2EE 1.4 Platform (since the J2EE 1.3 release)

The Sun Java System Application Server 8.1 release is based on the Java 2 Platform, Enterprise Edition, version 1.4. The Sun Java System Application Server 7 release is based on the Java 2 Platform, Enterprise Edition, version 1.3.

The Sun Java System Application Server 8.1 release is strongly compatible with previous versions of the J2EE platform. Almost all existing programs should run on the Sun Java System Application Server 8.1 release without modification. However, there are some minor potential incompatibilities that involve rare circumstances and corner cases that we are documenting here for completeness.