We are facing a OOM in a SAP Webdynpro Japro/ANT build. After some 7 minutes the process exits with this message:

java.lang.OutOfMemoryError: PermGen space
PermGen space

We discovered a large number of ClassLoaders with "jmap -permstat", which don't get removed.

The PermSize is 128m in this testcase, if one increases the PermSize the testcase fails later, but it will fail definately.

You can access the testcase inside SWAN:

HOST : mde-gy.germany.sun.com
USER : sap
PASSWORD : sap
ACCESS : ssh, telnet
START : $HOME/go.sh
COMPILER : /opt/SUNWspro, Sun C++ 5.7 Patch 117830-02 2005/03/30
JDK : $HOME/jdk150_06, Java HotSpot(TM) Server VM (build 1.5.0_06-ea-b02, mixed mode)