assertThat(ArbitraryInstances.get(Ticker.class)).isNotNull();
    assertFreshInstanceReturned(Random.class);
    assertEquals(
        ArbitraryInstances.get(Random.class).nextInt(),
        ArbitraryInstances.get(Random.class).nextInt());
  }

  public void testGet_concurrent() {
    assertTrue(ArbitraryInstances.get(BlockingDeque.class).isEmpty());
    assertTrue(ArbitraryInstances.get(BlockingQueue.class).isEmpty());

      }
      // We need to ensure that at least 4 bytes have been put into the hasher or else
      // Hasher#hash will throw an ISE.
      int intToPut = random.nextInt();
      for (Hasher hasher : sinksAndControl) {
        hasher.putInt(intToPut);
      }
      for (Sink sink : sinks) {
        HashCode unused = sink.hash();
      }

    assertThat(ArbitraryInstances.get(Ticker.class)).isNotNull();
    assertFreshInstanceReturned(Random.class);
    assertEquals(
        ArbitraryInstances.get(Random.class).nextInt(),
        ArbitraryInstances.get(Random.class).nextInt());
  }

  public void testGet_concurrent() {
    assertTrue(ArbitraryInstances.get(BlockingDeque.class).isEmpty());
    assertTrue(ArbitraryInstances.get(BlockingQueue.class).isEmpty());

            List<ChannelInfo> list = new ArrayList<>(channels);
            return list.get(ThreadLocalRandom.current().nextInt(list.size()));
        }
        
        // Weighted random selection
        int random = ThreadLocalRandom.current().nextInt(totalWeight);
        int currentWeight = 0;
        
        for (ChannelInfo channel : channels) {
            currentWeight += channel.getScore();

    CacheLoader<String, String> countingIdentityLoader =
        new CacheLoader<String, String>() {
          @Override
          public String load(String key) throws InterruptedException {
            int behavior = random.nextInt(4);
            if (behavior == 0) { // throw an exception
              exceptionCount.incrementAndGet();
              throw new RuntimeException("fake exception for test");

    for (int i = 0; i < iterations; i++) {
      List<Integer> list = new ArrayList<>();
      for (int j = 0; j < elements; j++) {
        list.add(random.nextInt(10 * i + j + 1));
      }

      for (int seed = 1; seed < seeds; seed++) {
        int k = random.nextInt(10 * seed);
        assertEquals(ordering.sortedCopy(list).subList(0, k), ordering.leastOf(list, k));
      }
    }
  }

    for (int i = 0; i < iterations; i++) {
      List<Integer> list = new ArrayList<>();
      for (int j = 0; j < elements; j++) {
        list.add(random.nextInt(10 * i + j + 1));
      }

      for (int seed = 1; seed < seeds; seed++) {
        int k = random.nextInt(10 * seed);
        assertEquals(ordering.sortedCopy(list).subList(0, k), ordering.leastOf(list, k));
      }
    }
  }

                    logger.debug("Created new class realm {}", realmId);

                    return classRealm;
                } catch (DuplicateRealmException e) {
                    realmId = id + '-' + random.nextInt();
                }
            }
        }
    }

    @Override
    public ClassRealm getMavenApiRealm() {
        return mavenApiRealm;
    }

    @Override

    final int min;
    final int max;

    ListSizeDistribution(int min, int max) {
      this.min = min;
      this.max = max;
    }

    public int chooseSize(Random random) {
      return random.nextInt(max - min + 1) + min;
    }
  }

  private BenchmarkHelpers() {}

            byte[] salt = new byte[64];
            SecureRandom random = new SecureRandom();

            for (int i = 0; i < hashAlgos.length; i++) {
                hashAlgos[i] = random.nextInt(65536);
            }
            random.nextBytes(salt);

            PreauthIntegrityNegotiateContext original = new PreauthIntegrityNegotiateContext(mockConfig, hashAlgos, salt);

            // Encode