package uk.co.placona.helloWorld;

public class TestPolarisHack {

	public String sayHello() {
		return "Hello World";
	}
public static void main(String args[]){
	System.out.println("Test app");
}
}

package uk.co.placona.helloWorld;

public class HelloWorld{

	public String sayHello() {
		return "Hello World";
	}
public static void main(String args[]){
	System.out.println("Test app");
}
}

Update HelloWorld.java