// Needed to stop Eclipse whining
  private void resetWithHole() {
    List<E> container = new ArrayList<>();
    container.addAll(nCopies(a.getCount(), a.getElement()));
    container.addAll(nCopies(c.getCount(), c.getElement()));
    super.resetContainer(getSubjectGenerator().create(container.toArray()));
    sortedMultiset = (SortedMultiset<E>) getMultiset();
  }

     * @param a
     *            first array
     * @param b
     *            second array
     * @return the concatenated result array
     */
    public static <T> T[] addAll(final T[] a, final T[] b) {
        if (a == null) {
            return b;
        }
        if (b == null) {
            return a;
        }
        if (a.length == 0) {
            return b;

      return standardEquals(object);
    }

    @Override
    public int hashCode() {
      return standardHashCode();
    }

    @Override
    public boolean addAll(Collection<? extends T> collection) {
      return standardAddAll(collection);
    }

    @Override
    public void clear() {
      standardClear();
    }

    @Override

                    List<Plugin> pre = predecessors.get(entry.getKey());
                    if (pre != null) {
                        result.addAll(pre);
                    }
                    result.add(entry.getValue());
                }
                result.addAll(pending);

                target.setPlugins(result);
            }
        }

        @Override

        if (StringUtil.isNotBlank(key)) {
            final List<String> nameList = attributes.get(key);
            if (nameList != null) {
                list.addAll(nameList);
            }
        }
        final String value = fessConfig.getSystemProperty("saml.default.groups");
        if (StringUtil.isNotBlank(value)) {

            if (StringUtil.isNotBlank(baseDn) && StringUtil.isNotBlank(accountFilter)) {
                final LdapManager ldapManager = ComponentUtil.getLdapManager();
                permissions = distinct(ArrayUtils.addAll(ldapManager.getRoles(this, baseDn, accountFilter, groupFilter, roles -> {
                    permissions = distinct(roles);

            }

            Collection<String> versions =
                    new LinkedHashSet<>(recessive.getVersioning().getVersions());
            versions.addAll(versioning.getVersions());
            versioning.setVersions(new ArrayList<>(versions));
        }

        // just carry-on as-is
        if (!recessive.getPlugins().isEmpty()) {

                if (existing != null) {
                    if (version == null) {
                        version = existing.getVersion();
                    }
                    execs.addAll(existing.getExecutions());
                    deps.addAll(existing.getDependencies());
                }

                PluginExecution execution = PluginExecution.newBuilder()
                        .id(getExecutionId(existing, goal))

            for (File jsonFile : jsonFiles) {
                getLogger().info("Verifying documentation for file: {}", jsonFile.getName());
                allErrors.addAll(findMissingAdocFiles(jsonFile, directoryPath));
                allErrors.addAll(findMissingAnchors(jsonFile, allExistingAnchors));
            }

            if (!allErrors.isEmpty()) {

        if (!src.isEmpty()) {
            List<String> tgt = target.getModules();
            List<String> merged = new ArrayList<>(tgt.size() + src.size());
            merged.addAll(tgt);
            merged.addAll(src);
            target.setModules(merged);
        }
    }

    protected void mergeModelBase_Dependencies(