code: public static String encodeObject(final java.io.Serializable serializableObject) {
      return Base64.encodeObject(serializableObject, Base64.NO_OPTIONS);
    }
docs: Serializes an object and returns the Base64-encoded version of that serialized object. If the
  object cannot be serialized or there is another error, the method will return <tt>null</tt>.
  The object is not GZip-compressed before being encoded.
  
  @param serializableObject The object to encode
  @return The Base64-encoded object
  @since 1.4