Thanks for reply. I have set the value to -Xmx1024m -XX:PermSize=512m -XX:MaxPermSize=1024m, but it still gets that error. -- View this message in context: http://drools.46999.n3.nabble.com/PermGen-space-error-tp3728264p3728630.html Sent from the Drools: User forum mailing list archive at Nabble.com.