Oracle 10g Application Hang Issue ...... Please need Urgent Help

Hello All,
We have Linux server with Oracle Application 10g and Oracle 11g database.
We have developed an application with JSP/Servlet. We are facing an wired issue with this application.
When we start using system with 4-3 users at a time, after few mins or few hours, that application slow down or hang.
and then after we are not even able to get a simple HTML page. It also affect the other applications as well, which are deployed on that server.
We have tried our best but not able to find what the exact problem is. Even we have used visualVM and Jconsole to monitor the application.
When application hang, we had found that there were 6,959 Loaded Classes, 200MB heap size, CPU usage 20%.
We have set the heap size to 2GB.
Another thing is, some procedures take 20sec to 2min to execute. But does this affect the application such a way that it goes hang?
Please help to found out the problem.
Thanks,
Ankur Raiyani

Hello,
I have a simple question.
If any procedure takes 40 - 45 sec to execute then will that affect the Oracle Application server and make all the deployed instance slow?
Please help me out
Thanks in advance ......
Ankur Raiyani

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Message was edited by: Rajesh Alex
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