title: Read Facebook (private) messages with RestFB & Graph API 2.6
body: <p>I'm trying to build a Java desktop app which will log onto Facebook's servers using the RestFB library, fetch the last 25 messages from each of the last 10 people the user has spoken with, and show a popup if their name is called. </p>
  
  <p>So far I've got to log into Facebook with an app's appID &amp; appSecret, and got a token.</p>
  
  <p>My question is: On the official Graph API docs, they say that the "read_mailbox" feature is now obsolete and would only work for pages the user is admin on. They also say that it's been removed after Graph API 2.4 (i'm using 2.6). How could I read the user's private messages with Graph API 2.6? Note that when i'd be searching for messages, I would NOT know the last 10 people the user spoke with. This question has been answered already, but for that solution you HAVE to know the conversationID (which i want to fetch, not provide)</p>