com.fasterxml.jackson.databind.exc.InvalidDefinitionException: Cannot construct instance of `com.crio.warmup.stock.dto.Candle` (no Creators, like default construct, exist)

Unable to map from String class to Candle[].class while testing TiingoService.

Candle is interface and you should use the class so use tiingoCandle and then use candle to store elements in that