a standalone class for doing byte copying...

IOUtils.java

public class IOUtils
  public ByteArrayOutputStream readBytes(InputStream is) throws IOException{
		ByteArrayOutputStream baos = new ByteArrayOutputStream();

		int nRead;
		byte[] data = new byte[1024 * 16];

		while ((nRead = is.read(data, 0, data.length)) != -1) {
		  baos.write(data, 0, nRead);
		}
		baos.flush();
		return baos;
	}
}