LocalDateTime

Deserialize a long number which represents milliseconds from the epoch to a java.time.LocalDateTime. Unfortunately the build in class com.fasterxml.jackson.datatype.jsr310.deser.LocalDateTimeDeserializer does not support this. The com.fasterxml.jackson.datatype.jsr310.deser.InstantDeserializer supports millisecond timestamps when configured com.fasterxml.jackson.databind.DeserializationFeature.READ_DATE_TIMESTAMPS_AS_NANOSECONDS as false.

One possible solution: use a converter which converts a long to a LocalDateTime.

public static class LongToLocalDateTimeConverter extends StdConverter<Long, LocalDateTime> {
    public LocalDateTime convert(final Long value) {
        return Instant.ofEpochMilli(value).atZone(ZoneId.systemDefault()).toLocalDateTime();
    }
}

And add a @JsonDeserialize to the field:

@JsonDeserialize(converter = LongToLocalDateTimeConverter.class)
private LocalDateTime localDateTime;