private byte[] fetchClassFromFS(String path) throws FileNotFoundException, IOException {
        InputStream is = new FileInputStream(new File(path));

        // Get the size of the file
        long length = new File(path).length();

        if (length > Integer.MAX_VALUE) {
            // File is too large
        }

        // Create the byte array to hold the data
        byte[] bytes = new byte[(int)length];

        // Read in the bytes
        int offset = 0;
        int numRead = 0;
        while (offset < bytes.length
                && (numRead=is.read(bytes, offset, bytes.length-offset)) >= 0) {
            offset += numRead;
        }

        // Ensure all the bytes have been read in
        if (offset < bytes.length) {
            throw new IOException("Could not completely read file "+path);
        }

        // Close the input stream and return bytes
        is.close();
        return bytes;

    }