code: static public byte[] unzip(InputStream in) throws IOException {
  		ByteArrayOutputStream bos = new ByteArrayOutputStream();
  		CopyUtil.copy(new GZIPInputStream(in), bos);
  		return bos.toByteArray();
  	}
docs: Returns the unzipped contents of the zipped input stream in a byte array
  
  @param in
  the input stream to unzip
  @return the unzipped content in a byte array
  @throws IOException