Sun Java System Access Manager 7.1 Performance Tuning and Troubleshooting Guide

"OutOfMemoryError" When Access Manager is deployed in WebLogic or WebSphere Application Server

This occurs on Access Manager 7.0 or higher, even with sufficient JVM heap sizes.

Solution:Be sure that in addition to having sufficient JVM heap size, the CMS and NewParallel GC options are specified. Also be sure that -XX:-CMSParallelRemarkEnabled is included. See Third-Party Web Containers for more information.