I have noticed recently that your most recent posts have all been posted here in the Servlets forum, but have not been about Servlets.
We have many many forums, each with different topics that can better answer questions on those topics. While most people have experience in different areas, the concentration of expertise on a subject can be found in the matching topic forum.
Please try to post your question in the most appropriate forum.
I have already moved two other posts.
Instead of moving this post, I am going to close it, to allow you to look at our other forums and decide which forum best fits your question.