public com.google.cloud.vmwareengine.v1.PrivateCloud.ManagementCluster.Builder
        getManagementClusterBuilder() {
      bitField0_ |= 0x00000080;
      onChanged();
      return getManagementClusterFieldBuilder().getBuilder();
    }
<pre>
Required. Input only. The management cluster for this private cloud.
This field is required during creation of the private cloud to provide
details for the default cluster.

The following fields can't be changed after private cloud creation:
`ManagementCluster.clusterId`, `ManagementCluster.nodeTypeId`.
</pre>

<code>
.google.cloud.vmwareengine.v1.PrivateCloud.ManagementCluster management_cluster = 10 [(.google.api.field_behavior) = INPUT_ONLY, (.google.api.field_behavior) = REQUIRED];
</code>
java-vmwareengine/proto-google-cloud-vmwareengine-v1/src/main/java/com/google/cloud/vmwareengine/v1/PrivateCloud.java