CyclicTimeouts
AbstractConnectionPool.getPendingConnectionCount()
HttpClient.getDestinationIdleTimeout()
HttpClient.newSslClientConnectionFactory(SslContextFactory, ClientConnectionFactory)
HttpClient.setDestinationIdleTimeout(long)
HttpDestination.remove(Connection)
HttpDestination.newSslClientConnectionFactory(SslContextFactory, ClientConnectionFactory)
AbstractConnectionPool(HttpDestination, int, boolean, Callback)