import java.net.Socket;

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OutputStream out = socket.getOutputStream();        out.write(toBytes(cmd)); InputStream in = socket.getInputStream();        while ((len = in.read(bytes)) != -1) {            String str = new String(bytes, 0, len, StandardCharsets.UTF_8);            int sp = str.indexOf('\n');            if (sp != -1) {                sb.append(str, 0, sp);                break;            }            sb.append(str);        }