try-with-resource code snippet

AutoCloseable 구현한 개체만 가능

private void connectSendReceive(Packet packet) {
    LogWrapper.d(TAG, LogLogic.TCP, "connectSendReceive " + mHost + ":" + mPort);
    SocketAddress socketAddress = new InetSocketAddress(mHost, mPort);
    try (Socket socket = new Socket()) {
        socket.setSoTimeout(SOCKET_READ_TIMEOUT);
        socket.connect(socketAddress, SOCKET_CONNECT_TIMEOUT);
        LogWrapper.d(TAG, LogLogic.TCP, "after connect");

        try (BufferedOutputStream os = new BufferedOutputStream(socket.getOutputStream());
             BufferedInputStream is = new BufferedInputStream(socket.getInputStream())) {
            os.write(packet.packet, 0, packet.packet.length);
            os.flush();
            LogWrapper.d(TAG, LogLogic.TCP, "after write");

            byte[] buffer = new byte[MAX_READ_SIZE];
            int readSize = is.read(buffer, 0, buffer.length);
            LogWrapper.d(TAG, LogLogic.TCP, "after read, size:" + readSize);
            if (readSize > 0)
                LogWrapper.d(TAG, LogLogic.TCP, new String(Arrays.copyOf(buffer, readSize)));
            mEventListener.onFinished(packet, readSize > 0);
        } catch (Exception e) {
            LogWrapper.w(TAG, LogLogic.TCP, "sendAndReceive", e);
            mEventListener.onFinished(packet, false);
        }
    } catch (Exception e) {
        LogWrapper.w(TAG, LogLogic.TCP, "connect", e);
        mEventListener.onFinished(packet, false);
    }
}