# File ruby/jlambda.rb, line 91
        def add_constructor(src)
          begin
                c = :javassist_CtNewConstructor.jclass.make(normalize_block_exp(src),@ctclass)
                @ctclass.addConstructor(c)
          rescue => e
                raise RuntimeError.new("Can not make a constructor of #{@classname} => #{e.message}")
          end
        end