public void testRemove() {
    final String[] array = {"a", "b", "c"};

    Iterator<String> iterator =
        new UnmodifiableIterator<String>() {
          int i;

          @Override
          public boolean hasNext() {
            return i < array.length;
          }

          @Override
          public String next() {
            if (!hasNext()) {
              throw new NoSuchElementException();
            }

  @Override
  public abstract String toString();

  public static CommonPattern compile(String pattern) {
    return Platform.compilePattern(pattern);
  }

  public static boolean isPcreLike() {
    return Platform.patternCompilerIsPcreLike();
  }

    }

    protected String encodePath(final String path) {
        return Base64.getUrlEncoder().encodeToString(path.getBytes(Constants.CHARSET_UTF_8));
    }

    protected boolean isTarget(final String path) {
        return pattern.matcher(path).find();
    }

    protected abstract DictionaryFile<? extends DictionaryItem> newDictionaryFile(String id, String path, Date timestamp);

    public GroovyEngine groovyEngine;

    @Override
    protected String prepareConfigFile() {
        return "test_app.xml";
    }

    @Override
    protected boolean isSuppressTestCaseTransaction() {
        return true;
    }

    @Override
    public void setUp() throws Exception {
        super.setUp();
        groovyEngine = new GroovyEngine();
    }

    @Override

@GwtCompatible
public class UnhashableObject implements Comparable<UnhashableObject> {
  private final int value;

  public UnhashableObject(int value) {
    this.value = value;
  }

  @Override
  public boolean equals(@Nullable Object object) {
    if (object instanceof UnhashableObject) {
      UnhashableObject that = (UnhashableObject) object;
      return this.value == that.value;
    }
    return false;
  }

  public int getAndSet(int newValue) {
    int result = value;
    value = newValue;
    return result;
  }

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

  @Override
  public boolean equals(@CheckForNull Object obj) {
    return obj instanceof Count && ((Count) obj).value == value;
  }

  @Override
  public String toString() {
    return Integer.toString(value);
  }

    private static LogStream log = LogStream.getInstance();

    private MimeMap mimeMap;
    private String style;
    private NtlmSsp ntlmSsp;
    private boolean credentialsSupplied;
    private boolean enableBasic;
    private boolean insecureBasic;
    private String realm, defaultDomain;

    public void init() throws ServletException {
        InputStream is;
        StringBuffer sb = new StringBuffer();

     *
     * @param visitor the visitor to call back, must not be {@code null}
     * @return {@code true} to visit siblings nodes of this node as well, {@code false} to skip siblings
     */
    boolean accept(@Nonnull NodeVisitor visitor);

    /**
     * Returns a new tree starting at this node, filtering the children.
     * Note that this node will not be filtered and only the children

    @Override
    protected void setupHtmlData(final ActionRuntime runtime) {
        super.setupHtmlData(runtime);
        systemHelper.setupAdminHtmlData(this, runtime);

        final Boolean editable = getUserBean()
                .map(user -> user.hasRoles(fessConfig.getAuthenticationAdminRolesAsArray()) || user.hasRole(getActionRole())).orElse(false);
        runtime.registerData("editable", editable);

      yieldUntil()
    }
  }

  /** Process the queue until [condition] returns true. */
  private tailrec fun yieldUntil(
    strategy: ResumePriority = ResumePriority.AfterEnqueuedTasks,
    condition: () -> Boolean = { true },
  ) {
    taskRunner.assertThreadHoldsLock()
    val self = currentTask

    val yieldCompleteTask =
      object : SerialTask {
        override fun isReady() = condition()