} else if (size.divide(ONE_KB_BI).compareTo(BigInteger.ZERO) > 0) {
            displaySize = new BigDecimal(size).divide(BigDecimal.valueOf(1000)) + "KB";
        } else {
            displaySize = size + "bytes";
        }
        return displaySize;
    }

    public static long getUsedMemory() {
        final Runtime runtime = Runtime.getRuntime();

if "%unit%" == "m" goto mega
if "%unit%" == "M" goto mega
if "%unit%" == "g" goto giga
if "%unit%" == "G" goto giga

rem no unit found, must be bytes; consider the whole value
set conv=%value%
rem convert to KB
set /a conv=%conv% / 1024
:kilo
rem convert to MB
set /a conv=%conv% / 1024
goto mega
:giga
rem convert to MB
set /a conv=%conv% * 1024
:mega
set "%~2=%conv%"
goto:eof