I think I know what the problem is.
ranob, try this:
1) Install VisualVM
2) Restart your Glassfish
a) in Terminal type: asadmin stop-domain domain1
b) in Terminal type: asadmin start-domain domain1
3) Open VisualVM and add your server (if you the server is remote) using following connection:
service:jmx:rmi:///jndi/rmi://[machineName/or IP]:8686/jmxrmi
4) Try to redeploy your app several times and you will see in VisualVM that your memory is going up every time your redeploying it.
I have figure our the problem with my server. The problem was PermGen memory never clears. So, every time when i redeploy my app I have to restart Glassfish instance.
Read more here
http://blogs.sun.com/fkieviet/entry/how_to_fix_the_dreaded
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