code: public Object deserialize(String data) {
  		if ((data == null) || (data.length() == 0)) {
  			return null;
  		}
  		ObjectInputStream ois = null;
  		ByteArrayInputStream bis = null;
  		try {
  			bis = new ByteArrayInputStream(Base64.decodeBase64(data.getBytes()));
  			ois = new ObjectInputStream(bis);
  			return ois.readObject();
  		} catch (ClassNotFoundException e) {
  			LOGGER.error("Can't deserialize data from Base64", e);
  			throw new IllegalArgumentException(e);
  		} catch (IOException e) {
  			LOGGER.error("Can't deserialize data from Base64", e);
  			throw new IllegalArgumentException(e);
  		} catch (Exception e) {
  			LOGGER.error("Can't deserialize data from Base64", e);
  			throw new IllegalArgumentException(e);
  		} finally {
  			try {
  				if (ois != null) {
  					ois.close();
  				}
  			} catch (Exception e) {
  				LOGGER.error("Can't close ObjetInputStream used for deserialize data from Base64", e);
  			}
  		}
  	}
docs: Deserialze base 64 encoded string data to Object.