Foo foo = new Foo(prng.nextInt(), RandomStringUtils.randomAlphanumeric(4));
entity.setFoo(foo);
BarBar barbar = new BarBar();
barbar.i = prng.nextInt();
barbar.s = RandomStringUtils.randomAlphanumeric(4);
Bar bar = new Bar();
bar.i = prng.nextInt();
bar.s = RandomStringUtils.randomAlphanumeric(4);
bar.barbar = barbar;
entity.setBar(bar);
return entity;