OULD attempt to
 keep the connection open for reuse with another request.
 <br/>
 One can use the HTTP context to retrieve additional objects that 
 may be relevant for the keep-alive strategy: the actual HTTP 
 connection, the original HTTP request, target host if known, 
 number of times the connection has been reused already and so on.
 <br/>
 If the connection is already closed, <code>false</code> is returned.
 The stale connection check MUST NOT be triggered by a
 connection reuse strategy.</p></div>
 