entity.setStringMap(ImmutableMap.of("KA", "VA", "KB", "VB"));
entity.setLongSet(ImmutableSet.of(123L, 456L));
entity.setLongMap(ImmutableMap.of(1L, 11L, 2L, 22L));
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);