package cc.engeld;

public class HelloWorld {
    public static void main(String[] args) {
        System.out.println("Hello World, I'm using Travis-CI!");
    }
}

package cc.engeld;

public class HelloWorld {
    public static void main(String[] args) {
        System.out.println("Hello World, I'm using Travis-CI2!");
    }
}

Update HelloWorld.java