### Question:
RandomManager { static RandomGenerator getUnseededRandom() { RandomGenerator random = new Well19937c(); Collection<RandomGenerator> instances = INSTANCES.get(); if (instances != null) { synchronized (instances) { instances.add(random); } } return random; } private  RandomManager(); static RandomGenerator getRandom(); static RandomGenerator getRandom(long seed); static void useTestSeed();  }### Answer:
@Test public void testUnseededRandomState() { RandomGenerator generator = RandomManager.getUnseededRandom(); assertNotEquals(1553355631, generator.nextInt()); }