}

        Set<String> allClasses = new TreeSet<>(existingClasses); // Using TreeSet for natural ordering
        allClasses.addAll(processedClasses);

        StringBuilder newContentBuilder = new StringBuilder();
        for (String className : allClasses) {
            newContentBuilder.append(className).append("\n");
        }

            if (exclusions != null) {
                if (this.exclusions.isEmpty()) {
                    this.exclusions = new ArrayList<>();
                }
                this.exclusions.addAll(exclusions);
            }
            return this;
        }

        public DependencyCoordinatesFactoryRequestBuilder exclusion(Exclusion exclusion) {
            if (exclusion != null) {

            List<MojoExecution> mojoExecutions = new ArrayList<>();

            for (List<MojoExecution> executions : entry.getValue().values()) {
                mojoExecutions.addAll(executions);
            }

            lifecycleMappings.put(entry.getKey(), mojoExecutions);
        }

        return lifecycleMappings;
    }

    set.remove("b");
    set.addAll(newArrayList("A", "B", "C"));
    assertThat(tail).containsExactly("c", "A", "B", "C").inOrder();
  }

  public void testSkip_structurallyModifiedSkipSomeList() throws Exception {
    List<String> list = newArrayList("a", "b", "c");
    Iterable<String> tail = skip(list, 1);
    list.subList(1, 3).clear();
    list.addAll(0, newArrayList("A", "B", "C"));

    NamedObject(String name) {
      this.name = Preconditions.checkNotNull(name);
    }

    @CanIgnoreReturnValue
    NamedObject addPeers(String... names) {
      peerNames.addAll(ImmutableList.copyOf(names));
      return this;
    }

    @Override
    public boolean equals(@Nullable Object obj) {
      if (obj instanceof NamedObject) {
        NamedObject that = (NamedObject) obj;

            org.apache.maven.artifact.Artifact artifact = toArtifact(node.getDependency());

            List<String> nodeTrail = new ArrayList<>(trail.size() + 1);
            nodeTrail.addAll(trail);
            nodeTrail.add(artifact.getId());

            if (filter == null || filter.accept(node, Collections.emptyList())) {
                artifact.setDependencyTrail(nodeTrail);

            final String[] values = form.fields.get(LABEL_FIELD);
            final List<String> labelList = new ArrayList<>();
            if (values != null) {
                Collections.addAll(labelList, values);
            }
            for (final String labelTypeValue : labelList) {
                for (final Map<String, String> map : labelTypeItems) {

        assertEquals(1, chain3.updateCallCount);
    }

    // Test addChain null handling
    @Test
    public void test_addChain_withNull() {
        // ArrayUtils.addAll handles null gracefully by adding it to the array
        authenticationManager.addChain(null);

        // Verify null chain doesn't cause issues during operations
        User user = createTestUser("testuser");

            if (logger.isDebugEnabled()) {
                String id = getId(constituent);
                logger.debug("  Included: {}", id);
            }

            try {
                classRealm.addURL(file.toURI().toURL());
            } catch (MalformedURLException e) {
                // Not going to happen
                logger.error(e.getMessage(), e);
            }
        }
    }

    List<String> misses = new ArrayList<>();
    for (int i = 0; i < 256 - hits.size(); ++i) {
      misses.add("INVALID");
    }

    List<String> sampleDataList = new ArrayList<>();
    sampleDataList.addAll(hits);
    sampleDataList.addAll(misses);
    Collections.shuffle(sampleDataList);
    sampleData = sampleDataList.toArray(new String[sampleDataList.size()]);
  }