I stumbled upon this one http://www.antlr.org/wiki/display/ANTLR3/ANTLR+3.4+Release+Notes From these release notes 3.0-3.3 antlr version has circular dependency on 2.x antlr whose license wasn't very clean. Wondering whether we should upgrade to antlr 3.4. I am not a license expert so I don't know if it is required or we can live as it is.
Thanks, Ashutosh
