@java.lang.Override
  public int hashCode() {
    if (memoizedHashCode != 0) {
      return memoizedHashCode;
    }
    int hash = 41;
    hash = (19 * hash) + getDescriptor().hashCode();
    hash = (37 * hash) + NAME_FIELD_NUMBER;
    hash = (53 * hash) + getName().hashCode();
    hash = (37 * hash) + DISPLAY_NAME_FIELD_NUMBER;
    hash = (53 * hash) + getDisplayName().hashCode();
    if (hasIndexTime()) {
      hash = (37 * hash) + INDEX_TIME_FIELD_NUMBER;
      hash = (53 * hash) + getIndexTime().hashCode();
    }
    if (hasIndexError()) {
      hash = (37 * hash) + INDEX_ERROR_FIELD_NUMBER;
      hash = (53 * hash) + getIndexError().hashCode();
    }
    hash = (29 * hash) + getUnknownFields().hashCode();
    memoizedHashCode = hash;
    return hash;
  }
<pre>
Output only. If there was an error with indexing the product set, the field
is populated.

This field is ignored when creating a ProductSet.
</pre>

<code>.google.rpc.Status index_error = 4 [(.google.api.field_behavior) = OUTPUT_ONLY];</code>
java-vision/proto-google-cloud-vision-v1p4beta1/src/main/java/com/google/cloud/vision/v1p4beta1/ProductSet.java