Security of Java takes a dangerous turn for the worse, experts say (ars technica)

Giving an example that is easier does not mean that the original example is not easy.

Now, the *real* problem with the original example is that it's a simple adapter. If the iterator is supposed to do some filtering, then it becomes significantly less easy. That's when I long for yield in Java :) But the upcoming lambda support in Java 8 is supposed to make this much, much easier and effectively eliminate the need for implementing iterators thus making yield insignificant.