If you follow the tutorial, when you get to http://www.playframework.org/documentation/1.0/guide6
 
In the section 'A little more difficult now', if you add the following line to the suggested test case, you get a failure:
 
assertEquals(Arrays.asList(bobPost), Post.findTaggedWith("Red", "Blue"));
assertEquals(Arrays.asList(anotherBobPost), Post.findTaggedWith("Red", "Green"));
        
It appears the code within Post.findTaggedWith is actually returning a List<Int>