How do I create and use Java Builder Classes in Matlab?

I'm currently trying to import and use a class in Matlab 2015a that uses the Java Builder pattern and I can't seem to figure out how to instantiate an instance of the object. I can get the classes in my jar file imported into Matlab, but since the outer object has no constructor, I can't figure out how to instantiate the outer class in order to access the inner builder class and build the entire object. Does anyone have any insight into how I can instantiate and build the class in Matlab?

Below is my class setup.

package testJavaBuilder;

public class NutritionalFacts {
    private int sodium;
    private int fat;
    private int carbo;

    public static class Builder {
        private int sodium;
        private int fat;
        private int carbo;

        public Builder(int s) {
            this.sodium = s;
        }

        public Builder fat(int f) {
            this.fat = f;
            return this;
        }

        public Builder carbo(int c) {
            this.carbo = c;
            return this;
        }

        public NutritionalFacts build() {
            return new NutritionalFacts(this);
        }
    }

    private NutritionalFacts(Builder b) {
        this.sodium = b.sodium;
        this.fat = b.fat;
        this.carbo = b.carbo;
    }
}