f the request must reflect the dispatch target, while the original request URI,
 context path, path info, servlet path, and query string may be recovered from the <a href="../../javax/servlet/AsyncContext.html#ASYNC_REQUEST_URI"><code>ASYNC_REQUEST_URI</code></a>,
 <a href="../../javax/servlet/AsyncContext.html#ASYNC_CONTEXT_PATH"><code>ASYNC_CONTEXT_PATH</code></a>, <a href="../../javax/servlet/AsyncContext.html#ASYNC_PATH_INFO"><code>ASYNC_PATH_INFO</code></a>, <a href="../../javax/servlet/AsyncContext.ht