import com.third.party.library.UnknownClass;

public class ClassExtendingUnknownClass extends UnknownClass {

    private int foo;

    public int getFoo() {
        return foo;
    }

    public int getFoo2() {
        return this.foo;
    }

    public void foo(String s) {
        bar(s);
    }

    public void bar(String s) {}
}