presto-accumulo/src/main/java/io/prestosql/plugin/accumulo/serializers/LexicoderRowSerializer.java/LexicoderRowSerializer/getListLexicoder
class LexicoderRowSerializer:    private static ListLexicoder getListLexicoder(Type elementType)
    {
        ListLexicoder<?> listLexicoder = LIST_LEXICODERS.get(elementType);
        if (listLexicoder == null) {
            listLexicoder = new ListLexicoder(getLexicoder(Types.getElementType(elementType)));
            LIST_LEXICODERS.put(elementType, listLexicoder);
        }
        return listLexicoder;
    }