I am getting the following error in my webapp

Exception in thread "TP-Processor23" java.lang.OutOfMemoryError: PermGen space

I am using tomcat, struts2 and hibernate, and several postings (and my boss) blame hibernate.

Several postings said to add the following to my JAVA_OPTS "-XX:+CMSClassUnloadingEnabled -XX:+CMSPermGenSweepingEnabled"
but that did not work for me.

This is my JAVA_OPTS variable

JAVA_OPTS="-server -Xmx2000m -Djavax.servlet.request.encoding=UTF-8 -Dfile.encoding=UTF-8 -XX:+CMSClassUnloadingEnabled -XX:+CMSPermGenSweepingEnabled"


And this is the command that is actually run
/usr/java/bin/java -server -Xmx2000m -Djavax.servlet.request.encoding=UTF-8 -Dfile.encoding=UTF-8 -XX:+CMSClassUnloadingEnabled -XX:+CMSPermGenSweepingEnabled -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -Djava.util.logging.config.file=/usr/local/tomcat/conf/logging.properties -Djava.endorsed.dirs=/usr/local/tomcat/common/endorsed -classpath :/usr/local/tomcat/bin/bootstrap.jar:/usr/local/tomcat/bin/commons-logging-api.jar -Dcatalina.base=/usr/local/tomcat -Dcatalina.home=/usr/local/tomcat -Djava.io.tmpdir=/usr/local/tomcat/temp org.apache.catalina.startup.Bootstrap start



thanks

Kal



Hibernate version:
3.2.5

Mapping documents:
annotations 3.3.0

Name and version of the database you are using:
mysql 5.0.50

Just a thought, maybe you wanna up your available perm space? -XX:MaxPermSize=128m or larger. Also on a 32-bit VM you won't be able to use anything more than about 1500m or so... Use 1.6 if you can and start with the min/max/maxpermsize as your only tuning options and go from there. Just my 2 cents.