hi mgeise, i got same exception for case #3 and #4 as you said i allocate enough memory for jvm and restart the server its running fine (without allocation of memory if we restart the server it will start running properly ,its releasing memory ) but i guess this is not the solution cause it will again run out of memory after some time if usage got increase please share root cause of problem that its bug in coding that object or library are not releasing memory so we can make it out with permanent solution thank you . Post Edited by tulsi at 09/07/2012 06:22 Post Edited by tulsi at 09/07/2012 06:23