@Override
  public PortabilityJob findJob(UUID jobId) {
    Entity entity = datastore.get(getJobKey(jobId));
    if (entity == null) {
      return null;
    }
    try {
      return PortabilityJob.fromMap(getProperties(entity));
    } catch (IOException | ClassNotFoundException e) {
      // TODO: Rethrow as IOException and propagate to callers
      throw new RuntimeException(e);
    }
  }
Returns the job keyed by {@code jobId} in Datastore, or null if not found.
extensions/cloud/portability-cloud-google/src/main/java/org/datatransferproject/cloud/google/GoogleJobStore.java