public Builder setConnector(com.google.cloud.vpcaccess.v1.Connector value) {
      if (connectorBuilder_ == null) {
        if (value == null) {
          throw new NullPointerException();
        }
        connector_ = value;
      } else {
        connectorBuilder_.setMessage(value);
      }
      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