code: public static byte[] copyToByteArray(File in) throws IOException {
  		Assert.notNull(in, "No input File specified");
  		return copyToByteArray(new BufferedInputStream(new FileInputStream(in)));
  	}
docs: Copy the contents of the given input File into a new byte array.
  @param in the file to copy from
  @return the new byte array that has been copied to
  @throws IOException in case of I/O errors