title: A java interpreter written in java
body: <p>I'd like to write a Java interpreter, in Java, with the intention of adding some other features to the language.</p>
  
  <p>I was wondering if there was already some Java interpreters existing, written in Java, using javacc.
  That would be cool.</p>
  
  <p>I have already downloaded the java 1.5 grammar and Abstract Syntax Tree(AST) on the javacc website, but the problem is that the AST is just built, but not filled. In fact it does nothing.</p>
  
  <p>Do you know any opensource Java interpreter written with javacc ?</p>
  
  <p>Thank you,</p>
  
  <p>Loic</p>