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  1. Java Driver
  2. JAVA-5031

Kotlinx serialization decoding optional ObjectId fails to hydrate

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    • Icon: Bug Bug
    • Resolution: Fixed
    • Icon: Unknown Unknown
    • 4.10.0
    • None
    • Kotlin
    • None
    • Not Needed
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      2. Would you like the user to see examples of the syntax and/or executable code and its output?
      3. Which versions of the driver/connector does this apply to?

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      1. What would you like to communicate to the user about this feature? 2. Would you like the user to see examples of the syntax and/or executable code and its output? 3. Which versions of the driver/connector does this apply to?

    Description

      Handling of nullable ObjectId / Bson Value types fails if the type is the first in the data class and optional.

              @Serializable
              data class PaintOrder(
                  @SerialName("_id") // Use instead of @BsonId
                  @Contextual val id: ObjectId?,
                  val color: String,
                  val qty: Int,
                  @SerialName("brand")
                  val manufacturer: String = "Acme", // Use instead of @BsonProperty
              )
       
       
              val paintOrder = PaintOrder(ObjectId(), "red", 5, "Acme")
              val collection = database.getCollection<PaintOrder>("orders")
              val insertOneResult = collection.insertOne(paintOrder)
              println(insertOneResult) // returns with expected results (e.g. "AcknowledgedInsertOneResult{insertedId=BsonObjectId{value=648b20978b3dfb1f994a2164}}")
              val results = collection.find().firstOrNull()
              assertEquals(results, paintOrder)
      

      The following code is failing to hydrate the ObjectId even though its been decoded.

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            ross@mongodb.com Ross Lawley
            ross@mongodb.com Ross Lawley
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              Updated:
              Resolved: