public static double convertDoubleFromBytes(byte[] bytes) {
        return convertDoubleFromBytes(bytes, 0);
    }
Read in a double from an InputStream

@param inputStream
           The InputStream used to read the double
@return A double, which is the next 8 bytes converted from the InputStream
@throws IOException
            Thrown if there is a problem reading from the InputStream
jme3-core/src/plugins/java/com/jme3/export/binary/ByteUtils.java