title: What could be advantage of ServletRequestWrapper over Filter?
body: <p>In this <a href="https://stackoverflow.com/a/16492727/2160175">thread</a> it was cleary stated why <code>ServletResponseWrapper</code> can be useful. What about <code>ServletRequestWrapper</code>? What real application may use a <code>ServletRequestWrapper</code> for if in fact all could be achieved with just a Filter? Can somebody provide a scenario?</p>