未覆盖Adapter中的抽象方法onBindViewHolder

在写如下 RecyclerViewAdapter 时会报错 未覆盖Adapter中的抽象方法onBindViewHolder 。但是，明明已经覆盖实现了，怎么又保存呢。把 CommItemHolder 提出去单独搞一个类就不会有问题。

public class CommRecyclerViewAdapter<T> extends RecyclerView.Adapter<CommRecyclerViewAdapter.CommItemHolder> {

    private List<T> mData;
    private AdapterItem mAdapterItem;
    private View.OnClickListener mOnClickListener;
    private View.OnLongClickListener mOnLongClickListener;

    public CommRecyclerViewAdapter(List<T> mData, AdapterItem mAdapterItem) {
        this.mData = mData;
        this.mAdapterItem = mAdapterItem;
    }
    ...

    @NonNull
    @Override
    public CommItemHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
        return new CommItemHolder(parent.getContext(), parent, mAdapterItem);
    }

    @Override
    public void onBindViewHolder(@NonNull CommItemHolder holder, int position) {
        holder.itemView.setTag(position);
        holder.itemView.setOnClickListener(mOnClickListener);
        holder.itemView.setOnLongClickListener(mOnLongClickListener);
        holder.mAdapterItem.handleData(position);
    }

    @Override
    public int getItemCount() {
        return mData == null ? 0 : mData.size();
    }

    public List<T> getData() {
        return mData;
    }

    class CommItemHolder extends RecyclerView.ViewHolder {
        AdapterItem mAdapterItem;

        CommItemHolder(Context context, ViewGroup parent, AdapterItem adapterItem) {
            super(LayoutInflater.from(context).inflate(adapterItem.getResId(), parent, false));
            mAdapterItem = adapterItem;
            mAdapterItem.bindViews(this.itemView);
        }
    }

    public interface AdapterItem {
        void handleData(int position);

        int getResId();

        void bindViews(View itemView);
    }
}