throws Throwable
  public void importDefinitions(Env env)    throws Throwable  {    for (Map.Entry<String,AbstractFunction> entry : _funMap.entrySet()) {      AbstractFunction fun = entry.getValue();      if (fun.isGlobal())	env.addFunction(entry.getKey(), entry.getValue());    }        for (Map.Entry<String,ClassDef> entry : _classMap.entrySet()) {      env.addClassDef(entry.getKey(), entry.getValue());    }  }