return elements.reverse().iterator();
  }

  @Override
  public Spliterator<E> spliterator() {
    return asList().spliterator();
  }

  @Override
  public void forEach(Consumer<? super E> action) {
    elements.forEach(action);
  }

  @Override
  public int size() {
    return elements.size();
  }

  @Override
  public boolean contains(@Nullable Object o) {
    try {

            if (properyPattern.matcher(k).matches() && !v.startsWith(CIPHER_PREFIX)) {
                return new Pair<>(k, CIPHER_PREFIX + cipher.encrypt(v));
            }
            return new Pair<>(k, v);
        }).forEach(e -> {
            if (buf.length() > 0) {
                buf.append('\n');
            }
            buf.append(e.getFirst());
            buf.append('=');
            buf.append(e.getSecond());
        });

            execSpec.environment("VAGRANT_CWD", vagrantfile.getParentFile().toString());
            execSpec.environment("VAGRANT_VAGRANTFILE", vagrantfile.getName());
            extension.getHostEnv().forEach(execSpec::environment);

            execSpec.args(vagrantSpec.command);
            if (vagrantSpec.subcommand != null) {
                execSpec.args(vagrantSpec.subcommand);
            }

foreach configuration element:
 - if read only and being set squawk

 - find the parameter
 - get value from expression or default
 - if required and null squawk

      <configuration>

                cmdList.add("-Dorg.apache.tika.service.error.warn=true");
            }
        }
        stream(fessConfig.getJvmCrawlerOptionsAsArray())
                .of(stream -> stream.filter(StringUtil::isNotBlank).forEach(value -> cmdList.add(value)));

        File ownTmpDir = null;
        final String tmpDir = System.getProperty("java.io.tmpdir");
        if (fessConfig.isUseOwnTmpDir() && StringUtil.isNotBlank(tmpDir)) {

        if (STRATEGY_PARENT_FIRST.equals(classLoadingStrategy)) {
            realm.importFrom(parentRealm, "");
        } else if (STRATEGY_PLUGIN.equals(classLoadingStrategy)) {
            coreExports.getExportedPackages().forEach((p, cl) -> realm.importFrom(cl, p));
            providedArtifacts = coreExports.getExportedArtifacts();
        } else if (STRATEGY_SELF_FIRST.equals(classLoadingStrategy)) {
            realm.setParentRealm(parentRealm);

        }

        @Override
        public void run() {
            new BufferedReader(new InputStreamReader(inputStream, StandardCharsets.UTF_8))
                    .lines()
                    .forEach(consumer);
        }
    }

            }
            node = newNode;
            return oldObverseKey;
          }
        }
      };
    }

    @Override
    public void forEach(BiConsumer<? super V, ? super K> action) {
      checkNotNull(action);
      obverse.forEach((k, v) -> action.accept(v, k));
    }

    @Override
    public void replaceAll(BiFunction<? super V, ? super K, ? extends K> function) {
      checkNotNull(function);

        if (STRATEGY_PARENT_FIRST.equals(classLoadingStrategy)) {
            realm.importFrom(parentRealm, "");
        } else if (STRATEGY_PLUGIN.equals(classLoadingStrategy)) {
            coreExports.getExportedPackages().forEach((p, cl) -> realm.importFrom(cl, p));
            providedArtifacts = coreExports.getExportedArtifacts();
        } else if (STRATEGY_SELF_FIRST.equals(classLoadingStrategy)) {
            realm.setParentRealm(parentRealm);

        if (headers != null) {
            final Map<String, List<String>> map = new HashMap<>();
            headers.entrySet().stream().filter(e -> e.getKey() != null).forEach(
                    e -> map.put(e.getKey().toLowerCase(Locale.ROOT), e.getValue() == null ? List.of() : List.copyOf(e.getValue())));
            this.headers = Map.copyOf(map);
        }
    }

    /**