title: Listener Return an Arraylist/String
body: <p>With an antlr listener, that walks through a parse tree, i have been able to build a Arraylist of  information that i need. But i'm struggling to extract this information outside of the listener.</p>
  <p>Example of expectation is:</p>
  <pre><code>    ...
      ParseTreeWalker.DEFAULT.walk(Listener, tree);        
      ParseTree tree = myParser.statements();
      //I want to use my Arraylist here
      ...
  </code></pre>
  <p>Since the listener does not have a return value, Is there any way to do it?</p>