jackson-databind

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Describe the bug nil UUID value is deserialized in Include.NON_DEFAULT but not in Include.NON_EMPTY

Version information 2.13.3

To Reproduce

private static ObjectMapper redisObjectMapperNonDefault() {
    return new ObjectMapper().setDefaultPropertyInclusion(Include.NON_DEFAULT);
}

private static ObjectMapper redisObjectMapperNonEmpty() {
    return new ObjectMapper().setDefaultPropertyInclusion(Include.NON_EMPTY);
}

public static class TestInclude {
    @JsonProperty
    UUID nilUUID = UUID.fromString("00000000-0000-0000-0000-000000000000");
    @JsonProperty
    UUID randomUUID = UUID.randomUUID();
    @JsonProperty
    int defaultPrimitive;
    @JsonProperty
    int nonDEfaultPrimitive = 1;
}

public static void main(String[] args) throws JsonProcessingException {
    final var redisObjectMapperNonDefault = redisObjectMapperNonDefault();
    final var testInclude = new TestInclude();

    System.out.println("NON_DEFAULT:");
    System.out.println(redisObjectMapperNonDefault.writerWithDefaultPrettyPrinter().writeValueAsString(testInclude));
    final var redisObjectMapperNonEmpty = redisObjectMapperNonEmpty();

    System.out.println("NON_EMPTY:");
    System.out.println(redisObjectMapperNonEmpty.writerWithDefaultPrettyPrinter().writeValueAsString(testInclude));
}

Result:

NON_DEFAULT:
{
  "nilUUID" : "00000000-0000-0000-0000-000000000000",
  "randomUUID" : "fab6a3ef-98ea-4c97-b5f0-aabee23b697b",
  "nonDEfaultPrimitive" : 1
}
NON_EMPTY:
{
  "randomUUID" : "fab6a3ef-98ea-4c97-b5f0-aabee23b697b",
  "defaultPrimitive" : 0,
  "nonDEfaultPrimitive" : 1
}

Expected behavior I would expect one of the following:

• nilUUID to be deserialized in NON_EMPTY
• nilUUID not to be serialized in NON_DEFAULT, per documentation of this modifier: All values considered "empty" (as per #NON_EMPTY) are excluded

i'm a bit confused why BeanUtil.getDefaultValue returns JsonInclude.Include.NON_EMPTY only for container and reference types, when the NON_DEFAULT spec says it should always fall back on NON_EMPTY