Here is an example of how to use the JsonFactoryBuilder class from the Apache Commons IO library to create a JSON factory:

import org.apache.commons.io.output.JsonFactoryBuilder;
import com.fasterxml.jackson.core.JsonFactory;

public class Example {
    public static void main(String[] args) {
        JsonFactory factory = new JsonFactoryBuilder().build();
    }
}

In this example, the JsonFactoryBuilder class is used to create a new instance of the JsonFactory class, which can be used to read and write JSON data.

Note that this class is part of Apache Commons IO, which is a library of utility classes for java. It is not a Jackson class.