public Builder mergeExternalAddress(com.google.cloud.vmwareengine.v1.ExternalAddress value) {
      if (externalAddressBuilder_ == null) {
        if (((bitField0_ & 0x00000002) != 0)
            && externalAddress_ != null
            && externalAddress_
                != com.google.cloud.vmwareengine.v1.ExternalAddress.getDefaultInstance()) {
          getExternalAddressBuilder().mergeFrom(value);
        } else {
          externalAddress_ = value;
        }
      } else {
        externalAddressBuilder_.mergeFrom(value);
      }
      if (externalAddress_ != null) {
        bitField0_ |= 0x00000002;
        onChanged();
      }
      return this;
    }
<pre>
Required. External IP address description.
</pre>

<code>
.google.cloud.vmwareengine.v1.ExternalAddress external_address = 2 [(.google.api.field_behavior) = REQUIRED];
</code>
java-vmwareengine/proto-google-cloud-vmwareengine-v1/src/main/java/com/google/cloud/vmwareengine/v1/UpdateExternalAddressRequest.java