public Builder mergeConnector(com.google.cloud.vpcaccess.v1.Connector value) {
      if (connectorBuilder_ == null) {
        if (((bitField0_ & 0x00000004) != 0)
            && connector_ != null
            && connector_ != com.google.cloud.vpcaccess.v1.Connector.getDefaultInstance()) {
          getConnectorBuilder().mergeFrom(value);
        } else {
          connector_ = value;
        }
      } else {
        connectorBuilder_.mergeFrom(value);
      }
      if (connector_ != null) {
        bitField0_ |= 0x00000004;
        onChanged();
      }
      return this;
    }
<pre>
Required. Resource to create.
</pre>

<code>
.google.cloud.vpcaccess.v1.Connector connector = 3 [(.google.api.field_behavior) = REQUIRED];
</code>
java-vpcaccess/proto-google-cloud-vpcaccess-v1/src/main/java/com/google/cloud/vpcaccess/v1/CreateConnectorRequest.java