code: public static void copy(byte[] in, OutputStream out) throws IOException {
  		Assert.notNull(in, "No input byte array specified");
  		Assert.notNull(out, "No OutputStream specified");
  		out.write(in);
  	}
docs: Copy the contents of the given byte array to the given OutputStream.
  Leaves the stream open when done.
  @param in the byte array to copy from
  @param out the OutputStream to copy to
  @throws IOException in case of I/O errors