Hi All, I am facing a typical problem in WAS 3.5.3 environment. Recently it started showing an erratic behaviour which is difficult to understand. After some 3-4 hours of continuous testing the application starts showing the NullPointerException in a particular class. So from that request onwards whenever I call that class method, it throws the exception. Strange thing is, it does not show this behaviour for those 4-5 hours anywhere. If I escape that exception, it gives me the same exception somewhere else. I have increased the heap memory size also to 640MB maximum which should be enough for a medium sized web-application. If somebody has encounterd this kind problem anywhere, please give me some direction.
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