//@@@ should it be mapped to HttpHost or HttpRoute here?
//@@@ provide setter in TSCCM, it is implementation specific
HttpConnectionManagerParams.setMaxConnectionsPerHost
(params, route2.toHostConfig(), 2);
HttpConnectionManagerParams.setMaxConnectionsPerHost
(params, route3.toHostConfig(), 3);
ThreadSafeClientConnManager mgr = createTSCCM(params, null);
// route 3, limit 3
ManagedClientConnection conn1 = mgr.getConnection(route3, 10L);