code: public JClass []getParameterTypes()
    {
      Class []types = _method.getParameterTypes();
  
      JClass []jTypes = new JClass[types.length];
  
      for (int i = 0; i < types.length; i++) {
        jTypes[i] = _loader.forName(types[i].getName());
      }
  
      return jTypes;
    }
docs: Returns the parameter types.