A clear and concise description of what you expected to happen.

**Screenshots**
If applicable, add screenshots to help explain your problem.

**Environment (please complete the following information):**
 - OS: [e.g. Windows 10]
 - Version [e.g. 3.5.0]

**Additional context**

---
name: Feature request
about: Suggest an idea for this project
title: ''
labels: ''
assignees: ''

---

A clear and concise description of what you expected to happen.

**Screenshots**
If applicable, add screenshots to help explain your problem.

**Environment (please complete the following information):**
 - OS: [e.g. Windows 10]
 - Version [e.g. 13.5.0]

**Additional context**

---
name: Feature request
about: Suggest an idea for this project
title: ''
labels: ''
assignees: ''

---

     * </ul>
     * The value "always" should be used to describe documents that change each
     * time they are accessed. The value "never" should be used to describe
     * archived URLs.
     *
     * Please note that the value of this tag is considered a hint and not a
     * command. Even though search engine crawlers may consider this information
     * when making decisions, they may crawl pages marked "hourly" less

     */
    public void addFailure(final Throwable t) {
        failures.add(t);
    }

    /**
     * Checks if there are any failures recorded.
     *
     * @return true if there is at least one failure, false otherwise
     */
    public boolean hasFailure() {
        return !failures.isEmpty();
    }

    /**
     * Returns the list of failures.
     *