assertNotNull(causeStackTrace);
        assertTrue(mainStackTrace.length > 0);
        assertTrue(causeStackTrace.length > 0);

        // Stack traces should be different
        assertNotSame(mainStackTrace, causeStackTrace);
    }

    /**
     * Test printStackTrace functionality
     */
    public void test_printStackTrace() {

        TestResponseProcessor newProcessor = new TestResponseProcessor();
        testRule.setResponseProcessor(newProcessor);
        assertSame(newProcessor, testRule.getResponseProcessor());
        assertNotSame(processor, testRule.getResponseProcessor());

        // Set null processor
        testRule.setResponseProcessor(null);
        assertNull(testRule.getResponseProcessor());
    }

    /**

  }

  public void testLeastOfIterable_ties() {
    Integer foo = new Integer(Integer.MAX_VALUE - 10);
    Integer bar = new Integer(Integer.MAX_VALUE - 10);

    assertNotSame(foo, bar);
    assertEquals(foo, bar);

    List<Integer> list = asList(3, foo, bar, -1);
    List<Integer> result = numberOrdering.leastOf(list, list.size());

  }

  public void testLeastOfIterable_ties() {
    Integer foo = new Integer(Integer.MAX_VALUE - 10);
    Integer bar = new Integer(Integer.MAX_VALUE - 10);

    assertNotSame(foo, bar);
    assertEquals(foo, bar);

    List<Integer> list = asList(3, foo, bar, -1);
    List<Integer> result = numberOrdering.leastOf(list, list.size());

            rules.add(rule);
        }

        // Verify all IDs are unique
        for (int i = 0; i < rules.size(); i++) {
            for (int j = i + 1; j < rules.size(); j++) {
                assertNotSame(rules.get(i).getRuleId(), rules.get(j).getRuleId());
            }
        }
    }

    /**
     * Test rule processor chain behavior
     */
    public void test_ruleProcessorChain() {

    EnumMap<SomeEnum, Integer> original = Maps.newEnumMap(SomeEnum.class);
    EnumMap<SomeEnum, Integer> copy = Maps.newEnumMap(original);
    assertEquals(original, copy);
    assertNotSame(original, copy);
  }

  public void testEnumMapWithInitialMap() {
    HashMap<SomeEnum, Integer> original = new HashMap<>();
    original.put(SomeEnum.SOME_INSTANCE, 0);

    }
  }

  public void testCopy() {
    BloomFilter<String> original = BloomFilter.create(Funnels.unencodedCharsFunnel(), 100);
    BloomFilter<String> copy = original.copy();
    assertNotSame(original, copy);
    assertEquals(original, copy);
  }

  public void testExpectedFpp() {
    BloomFilter<Object> bf = BloomFilter.create(HashTestUtils.BAD_FUNNEL, 10, 0.03);
    double fpp = bf.expectedFpp();

      Object instance = ArbitraryInstances.get(mutableClass);
      assertWithMessage("Expected to return non-null for: %s", mutableClass)
          .that(instance)
          .isNotNull();
      assertNotSame(
          "Expected to return fresh instance for: " + mutableClass,
          instance,
          ArbitraryInstances.get(mutableClass));
    }
  }

  private enum EmptyEnum {}

      Object instance = ArbitraryInstances.get(mutableClass);
      assertWithMessage("Expected to return non-null for: %s", mutableClass)
          .that(instance)
          .isNotNull();
      assertNotSame(
          "Expected to return fresh instance for: " + mutableClass,
          instance,
          ArbitraryInstances.get(mutableClass));
    }
  }

  private enum EmptyEnum {}

  public void testBuilderForceCopy() {
    ImmutableList.Builder<Integer> builder = ImmutableList.builder();
    Object[] prevArray = null;
    for (int i = 0; i < 10; i++) {
      builder.add(i);
      assertNotSame(builder.contents, prevArray);
      prevArray = builder.contents;
      ImmutableList<Integer> unused = builder.build();
    }
  }

  @GwtIncompatible
  public void testBuilderExactlySizedReusesArray() {