03 Java Runtime

uPortal currently requires a Java 5.0 JDK or later. Most deployments are utilizing the Sun JVM on a variety of platforms, though a number of people have reported success with the IBM JVM, BEA JRocket, and others.

Version 2.6 and later may depend on Java 5 language features, and will not run or compile on prior version JVMs.

Version 2.5 and later require the DOM3 API which is included with Java 5 JVMs, or may be installed into the endorsed directory of a 1.4 JVM.

Versions 2.4.3 and earlier will not run on JDK 5 or later due to changes made to DOM APIs bundled with the JRE. You must have a JDK > 1.4 Installed to run uPortal. uP 2.4.3+ are compatible with JDK 1.5. This is in addition to the requirements of your Application server.