String urlStr;
        URL url = new URL(urlStr);
        BufferedInputStream origin = new BufferedInputStream(((HttpURLConnection) url.openConnection()).getInputStream());
        if (origin != null) {
            try {
                ...........
            } finally {
                origin.close();
            }
        } else {
            return null;
        }

        BufferedInputStream origin = new BufferedInputStream(((HttpURLConnection) url.openConnection()).getInputStream());
        try {
            ...........
        } finally {
             origin.close();
        }

    HttpURLConnection con = (HttpURLConnection) url.openConnection();
    try {
        BufferedInputStream origin = new BufferedInputStream(con.getInputStream());
    } catch (IOException e) {
        con.disconnect();
        thtow e;
    }
    try {
        ...........
    } finally {
         origin.close(); <-- это закроет в т.к. conn, так что делать  disconnect не надо!
    }