Black magic casting?

package ninja.genuine.brainfuck;

import java.io.Serializable;

public class BrainFuck {

    public static void main(String[] args) {
        System.out.println(foo(null) instanceof Serializable);
        System.out.println(bar(null) instanceof Serializable);
    }

    public static Something foo(Object o) {
        return (Something) o1 -> {};
    }

    public static Something bar(Object o) {
        return (Something & Serializable) o1 -> {};
    }

    public static interface Something {

        void idk(Object o);
    }
}

/**
 * The output of the program is:
 * false
 * true
 */