Deserializing @JacksonXmlText

Whilst there is no problem serializing a field annotated with @JacksonXmlText, deserialization always chokes up. For example (in Scala, but should be clear enough):

case class Phone (
  @JacksonXmlProperty(isAttribute = true, localName = "type") phoneType: String,
  @JacksonXmlText phoneNumber: String
)

Serializes Phone("cell","000-000-0000") into <phone type="cell">000-000-0000</phone>, but deserializing the same thing will fail with

JsonMappingException: Could not find creator property with name ''

Is there a reason this can’t/shouldn’t be supported, at least in restricted situations like the above? It seems like this falls under the “XML written using this module must be readable using module as well”.

[iteratoruk]

My current workaround is to use a custom deserializer:

@JsonDeserialize(using = classOf[AttributeAndTextTypeDeserializer])
case class MyElement(@JacksonXmlProperty(localName = "anAttribute", isAttribute = true)
                     anAttribute: Option[String] = None,

                     @JacksonXmlText
                     theValue: Option[String] = None)

class AttributeAndTextTypeDeserializer extends StdDeserializer[MyElement](classOf[MyElement]) {

  override def deserialize(p: JsonParser, ctx: DeserializationContext): MyElement = {
    val n: JsonNode = p.getCodec.readTree(p)
    MyElement(nonEmptyOrNone(n.get("anAttribute").asText("")), nonEmptyOrNone(n.get("").asText("")))
  }

  private def nonEmptyOrNone(str: String): Option[String] = if (str.trim.isEmpty) None else Some(str)

}

[Simon3]

Actually, forget about it. My problem is related to Kotlin data classes. Works fine with normal classes. Seems to be a known issue in jackson-module-kotlin: https://github.com/FasterXML/jackson-module-kotlin/issues/138