[personality-insights] NullPointerException when serializing a Profile with Jackson

[l2fprod]

Hello,

I want to persist the Personality Insights Profile in Cloudant with Ektorp which uses Jackson. Jackson throws NullPointerException when serializing a Trait:

    ... 9 more
Caused by: java.lang.NullPointerException
    at com.ibm.watson.developer_cloud.personality_insights.v2.model.Trait.getRawScore(Trait.java:115)

Debugging the rawScore object is null, thus the unboxing to "double" fails when getRawScore is called, leading to NPE

So is the use of Double a typo or is it on purpose? In in java-sdk/src/main/java/com/ibm/watson/developer_cloud/personality_insights/v2/model/Trait.java:

  /** The raw sampling error. */
  @SerializedName("raw_sampling_error")
  private Double rawSamplingError;

  /** The raw score. */
  @SerializedName("raw_score")
  private Double rawScore;

  /** The sampling error. */
  @SerializedName("sampling_error")
  private double samplingError;

thanks.

[germanattanasio]

@l2fprod which version of the Java SDK are you using?

Regarding Double vs double. We are trying to use objects instead of primitive types.

null values are deserialized as 0.0 when using double and null when using Double.

Looks like we have some double and Double in our Trait.java class.

I will be working on this.

[germanattanasio]

@l2fprod, the SDK uses gson so as a workaround you can serialize the profile doing something like:

Profile profile = service.getProfile(options); // Call the service
String profileAsJson = GsonSingleton.getGson().toJson(profile);

[l2fprod]

For now, I workaround the issue by traversing the tree and settings the null values to 0, ugly but then I can use the POJO and nice features of Ektorp for CouchDB.

Whether you use double or Double in the model, I guess it is the "getter" that will need to be fixed. Either changing to return a "Double" or properly handling the null value to avoid NPE.

    new Trait().getRawSamplingError();

currently throws NPE.

[germanattanasio]

Fixed in the latest release

[l2fprod]

moved to 2.5. works perfectly! thank you!