assertFalse(Objects.equal("1", 1));
  }

  public void testHashCode() throws Exception {
    int h1 = Objects.hashCode(1, "two", 3.0);
    int h2 = Objects.hashCode(Integer.valueOf(1), new String("two"), Double.valueOf(3.0));
    // repeatable
    assertEquals(h1, h2);

    // These don't strictly need to be true, but they're nice properties.
    assertTrue(Objects.hashCode(1, 2, null) != Objects.hashCode(1, 2));

        }

        public long getIntegerOverflowsPrevented() {
            return integerOverflowsPrevented;
        }

        public double getFailureRate() {
            return totalValidations > 0 ? (double) failedValidations / totalValidations : 0;
        }
    }

     * `get()`, but that is vanishingly unlikely.
     */
    return ref == null ? Optional.absent() : Optional.fromNullable(enumClass.cast(ref.get()));
  }

  static String formatCompact4Digits(double value) {
    return String.format(Locale.ROOT, "%.4g", value);
  }

  static boolean stringIsNullOrEmpty(@Nullable String string) {
    return string == null || string.isEmpty();
  }

  /**

        Map<String, Object> sourceMap = new HashMap<>();
        sourceMap.put("string", "test");
        sourceMap.put("integer", 42);
        sourceMap.put("long", 100L);
        sourceMap.put("double", 3.14);
        sourceMap.put("boolean", false);
        sourceMap.put("null_value", null);
        sourceMap.put("nested", nestedMap);

        event.setSourceMap(sourceMap);

    assertTrue(service.shutDownCalled);
    assertEquals(Service.State.FAILED, service.state());
    assertThat(expected.getCause().getSuppressed()[0]).hasMessageThat().isEqualTo("double kaboom!");
  }

  private class ThrowOnRunService extends AbstractExecutionThreadService {
    private boolean shutDownCalled = false;
    private boolean throwOnShutDown = false;

    @Override

        regA(builder);
        return builder;
    }

    protected PercentileRanksAggregationBuilder regPercentileRanksA(String name, String field, double[] values) {
        PercentileRanksAggregationBuilder builder = AggregationBuilders.percentileRanks(name, values).field(field);
        regA(builder);
        return builder;
    }

  }

  // This is all essentially copied from ImmutableSet, but we have to duplicate because
  // of dependencies.

  // Represents how tightly we can pack things, as a maximum.
  private static final double DESIRED_LOAD_FACTOR = 0.5;

  /**
   * Returns an array size suitable for the backing array of a hash table that uses open addressing

    }
    final class Splitr extends MapWithIndexSpliterator<Spliterator.OfDouble, R, Splitr>
        implements DoubleConsumer {
      double holder;

      Splitr(Spliterator.OfDouble splitr, long index) {
        super(splitr, index);
      }

      @Override
      public void accept(double t) {
        this.holder = t;
      }

      @Override
      public boolean tryAdvance(Consumer<? super R> action) {

        /** Number of initializing shards */
        public int initializingShards;
        /** Number of relocating shards */
        public int relocatingShards;
        /** Percentage of active shards */
        public double activeShardsPercent;
        /** Number of active shards */
        public int activeShards;
        /** Number of active primary shards */
        public int activePrimaryShards;
        /** Number of data nodes */

        s2.close();
    }

    @Test
    @DisplayName("DFS referrals: invalid double-slash prefix triggers exception")
    void dfsReferrals_invalidPath() {
        CIFSException ex = assertThrows(CIFSException.class, () -> transport.getDfsReferrals(ctx, "\\\\server\\share", null, null, 1));
        assertTrue(ex.getMessage().contains("double slash"));
    }

    @Nested
    @MockitoSettings(strictness = Strictness.LENIENT)