private com.google.protobuf.SingleFieldBuilderV3<
            com.google.protobuf.Timestamp,
            com.google.protobuf.Timestamp.Builder,
            com.google.protobuf.TimestampOrBuilder>
        getPostingUpdateTimeFieldBuilder() {
      if (postingUpdateTimeBuilder_ == null) {
        postingUpdateTimeBuilder_ =
            new com.google.protobuf.SingleFieldBuilderV3<
                com.google.protobuf.Timestamp,
                com.google.protobuf.Timestamp.Builder,
                com.google.protobuf.TimestampOrBuilder>(
                getPostingUpdateTime(), getParentForChildren(), isClean());
        postingUpdateTime_ = null;
      }
      return postingUpdateTimeBuilder_;
    }
<pre>
Output only. The timestamp when this job posting was last updated.
</pre>

<code>
.google.protobuf.Timestamp posting_update_time = 27 [(.google.api.field_behavior) = OUTPUT_ONLY];
</code>
java-talent/proto-google-cloud-talent-v4/src/main/java/com/google/cloud/talent/v4/Job.java