Apache HttpClient Simple connection manager

BasicHttpClientConnectionManager is a simple connection manager that maintains only one connection at a time. 

Even though this class is thread-safe it ought to be used by one execution thread only. BasicHttpClientConnectionManager will make an effort to reuse the connection for subsequent requests with the same route. It will, however, close the existing connection and re-open it for the given route, if the route of the persistent connection does not match that of the connection request. If the connection has been already been allocated, then java.lang.IllegalStateException is thrown.

This connection manager implementation should be used inside an EJB container.