public Builder mergeNetworkConfig(com.google.cloud.vmwareengine.v1.NetworkConfig value) {
      if (networkConfigBuilder_ == null) {
        if (((bitField0_ & 0x00000040) != 0)
            && networkConfig_ != null
            && networkConfig_
                != com.google.cloud.vmwareengine.v1.NetworkConfig.getDefaultInstance()) {
          getNetworkConfigBuilder().mergeFrom(value);
        } else {
          networkConfig_ = value;
        }
      } else {
        networkConfigBuilder_.mergeFrom(value);
      }
      if (networkConfig_ != null) {
        bitField0_ |= 0x00000040;
        onChanged();
      }
      return this;
    }
<pre>
Required. Network configuration of the private cloud.
</pre>

<code>
.google.cloud.vmwareengine.v1.NetworkConfig network_config = 9 [(.google.api.field_behavior) = REQUIRED];
</code>
java-vmwareengine/proto-google-cloud-vmwareengine-v1/src/main/java/com/google/cloud/vmwareengine/v1/PrivateCloud.java