public Builder setComputeEngineTargetDetails(
        com.google.cloud.vmmigration.v1.ComputeEngineTargetDetails value) {
      if (computeEngineTargetDetailsBuilder_ == null) {
        if (value == null) {
          throw new NullPointerException();
        }
        targetVmDetails_ = value;
        onChanged();
      } else {
        computeEngineTargetDetailsBuilder_.setMessage(value);
      }
      targetVmDetailsCase_ = 14;
      return this;
    }
<pre>
Output only. Details of the target VM in Compute Engine.
</pre>

<code>
.google.cloud.vmmigration.v1.ComputeEngineTargetDetails compute_engine_target_details = 14 [(.google.api.field_behavior) = OUTPUT_ONLY];
</code>
java-vmmigration/proto-google-cloud-vmmigration-v1/src/main/java/com/google/cloud/vmmigration/v1/CutoverJob.java