java-puzzle-solution.java

// http://wouter.coekaerts.be/2015/puzzle-tweet

class C extends B {
    public C() {
        super(new java.lang.Long(1));
    }
} 

class A {
    public class B {
        public B(java.lang.Long dummy) {
        }
    }

    public class LongClass {
        public int compare(java.lang.Long a, java.lang.Long b) { return 1; }
    }

    public LongClass Long = new LongClass();

    public static void main(String[] args) {
        System.out.println("Hello World!");
        new C();
    }
}