private com.google.protobuf.SingleFieldBuilder<
          JInPiqi.handle_action, JInPiqi.handle_action.Builder, JInPiqi.handle_actionOrBuilder> 
          getHandleActionFieldBuilder() {
        if (handleActionBuilder_ == null) {
          handleActionBuilder_ = new com.google.protobuf.SingleFieldBuilder<
              JInPiqi.handle_action, JInPiqi.handle_action.Builder, JInPiqi.handle_actionOrBuilder>(
                  handleAction_,
                  getParentForChildren(),
                  isClean());
          handleAction_ = null;
        }
        return handleActionBuilder_;
      }