presto-main/src/main/java/io/prestosql/sql/gen/JoinCompiler.java/PagesHashStrategyFactory/createPagesHashStrategy
class PagesHashStrategyFactory:        public PagesHashStrategy createPagesHashStrategy(List<? extends List<Block>> channels, OptionalInt hashChannel)
        {
            try {
                return constructor.newInstance(channels, hashChannel);
            }
            catch (ReflectiveOperationException e) {
                throw new RuntimeException(e);
            }
        }