public Builder mergeUpgradeStatus(com.google.cloud.vmmigration.v1.UpgradeStatus value) {
      if (upgradeStatusBuilder_ == null) {
        if (((bitField0_ & 0x00002000) != 0)
            && upgradeStatus_ != null
            && upgradeStatus_
                != com.google.cloud.vmmigration.v1.UpgradeStatus.getDefaultInstance()) {
          getUpgradeStatusBuilder().mergeFrom(value);
        } else {
          upgradeStatus_ = value;
        }
      } else {
        upgradeStatusBuilder_.mergeFrom(value);
      }
      if (upgradeStatus_ != null) {
        bitField0_ |= 0x00002000;
        onChanged();
      }
      return this;
    }
<pre>
Output only. The status of the current / last upgradeAppliance operation.
</pre>

<code>
.google.cloud.vmmigration.v1.UpgradeStatus upgrade_status = 16 [(.google.api.field_behavior) = OUTPUT_ONLY];
</code>
java-vmmigration/proto-google-cloud-vmmigration-v1/src/main/java/com/google/cloud/vmmigration/v1/DatacenterConnector.java