在为RecyclerView列表创建适配器后取消选中

在我的RecyclerView列表的适配器中，出现与投射相关的警告 . as List<Product> 在 myList.addAll(results.values as List<Product>) 中返回以下警告 . 如何在不抑制任何警告的情况下解决这个问题？

未经检查的演员：任何！列表

'Product' class

class Product {

    var productName: String? = null
    var productDescription: String? = null

    constructor() {}

    constructor(productName: String, productDescription: String) {
        this.productName = productName
        this.productDescription = productDescription
    }
}

adapter class

class MyListAdapter(private val mCtx: Context, private val myList: MutableList<Product>, private val mTwoPane: Boolean) : RecyclerView.Adapter<MyViewHolder>(), Filterable {
    private var myListFull = myList.toMutableList()

    private val myFilter = object : Filter() {
        override fun performFiltering(constraint: CharSequence?): Filter.FilterResults {
            val filteredList = ArrayList<Product>()

            when {
                constraint == null || constraint.isEmpty() -> filteredList.addAll(myListFull)
                else -> {
                    val filterPattern = constraint.toString().toLowerCase().trim { it <= ' ' }

                    for (item in myListFull) {
                        when {
                            item.productName!!.toLowerCase().contains(filterPattern) -> filteredList.add(item)
                        }
                    }
                }
            }

            val results = Filter.FilterResults()
            results.values = filteredList

            return results
        }

        override fun publishResults(constraint: CharSequence, results: Filter.FilterResults) {
            myList.clear()
            myList.addAll(results.values as List<Product>)
            notifyDataSetChanged()
        }
    }

    inner class MyViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView) {
        var tvTitle: TextView = itemView.findViewById(R.id.rvitem_title)
        var tvSubtitle: TextView = itemView.findViewById(R.id.rvitem_subtitle)
    }

    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): MyViewHolder {
        val inflater = LayoutInflater.from(mCtx)
        val v = inflater.inflate(R.layout.listitem_dualline, parent, false)
        return MyViewHolder(v)
    }

    override fun onBindViewHolder(holder: MyViewHolder, position: Int) {
        val product = myList[holder.adapterPosition]

        holder.textviewTitle.text = product.productName
        holder.textviewSubtitle.text = product.productDescription
    }

    override fun getItemCount(): Int {
        return myList.size
    }

    override fun getFilter(): Filter {
        return myFilter
    }
}