JsonObject jsonPost = new JsonObject();
jsonPost.put("id", post.getId());
jsonPost.put("sone", post.getSone().getId());
+ jsonPost.put("recipient", (post.getRecipient() == null) ? null : post.getRecipient().getId());
jsonPost.put("time", post.getTime());
postTemplate.set("post", post);
StringWriter stringWriter = new StringWriter();