Helper.execute(request, conn, target,
httpExecutor, httpProcessor, defaultParams, httpContext);
// we leave the connection in mid-use
// it's not really re-usable, but it must be closed anyway
conn.markReusable();
// first check that we can't get another connection
try {
// this should fail quickly, connection has not been released
getConnection(mgr, route, 10L, TimeUnit.MILLISECONDS);