try { is.close(); } catch (IOException e) { }
closeFile(is);
    private static String execCommand(String[] commandLine) {        InputStream is = null;        StringBuffer result = new StringBuffer();        try {            Process process = Runtime.getRuntime().exec(commandLine);            is = process.getInputStream();            int rc = process.waitFor();            if (rc != 0) {                return null;            }            int r;            while((r = is.read()) >= 0) {                result.append((char) (r & 0xFF));            }            return result.toString().trim();        } catch (IOException e) {            DebugLog.error(e);        } catch (InterruptedException e) {            DebugLog.error(e);        } finally {            try {                is.close();            } catch (IOException e) {            }        }        return null;    }