assertEquals(1, keyedObjectPool.getNumIdle(address));
TcpTransport tcpConnection = (TcpTransport) keyedObjectPool.borrowObject(address);
keyedObjectPool.returnObject(address, tcpConnection);//now we have a reference to the single connection in pool
tcpConnection.destroy();
assertEquals("v", rc.get("k"));
assertEquals(0, keyedObjectPool.getNumActive(address));
assertEquals(1, keyedObjectPool.getNumIdle(address));