Json array not serializing properly

Question

I am trying to Json serialize and deserialize LocalDate array in my Java class but when i generate json schema for the web service, the parameter still shows up as LocalDate rather than String.

Following is the code :

@JsonSerialize(
        contentUsing = ToStringSerializer.class
    )
    @JsonDeserialize(
        contentUsing = LocalDateFromJSON.class
    )
    private LocalDate[] amortizationDates;

and in Json schema this appears as :

amortizationDates":{"type":"array","items":{"$ref":"#/definitions/LocalDate"}}

which is wrong because it should appear as String when serialized.

Any ideas on how to serialize it as String.

Edit:

I am suing Jackson for serialization and following are serializer details :

com.fasterxml.jackson.databind.ser.std.ToStringSerializer- Jackson inbuilt

LocalDateFromJSON ->

public static class LocalDateFromJSON extends JsonDeserializer<LocalDate> {
        public LocalDateFromJSON() {
        }

        public LocalDate deserialize(JsonParser jsonParser, DeserializationContext deserializationContext) throws IOException {
            return LocalDate.parse(((TextNode)jsonParser.readValueAsTree()).asText());
        }
    }