Hi Sumanta,
To answer this question, I need to ask you another question. Is this your first request in the session ?
Generally, it happens when the cookies are disabled. But, however even if cookies are enabled, first request will need to send jsessionid because the server does not yet know if browser supports cookies or not. Only when the second request comes back with a cookie, the server will realize that client supports cookies.
So, this is expected behavior in the first request ( whether cookies are enabled or not). But, for second request onwards, it depends on whether cookies are enabled.
Please correct me if I am wrong.
Thanks,
Kenny Kuriakose
SCJP, SCWCD, SCBCD,
SCEA - part 1