* The result field.
     */
    protected static final String RESULT_FIELD = "result";

    private static final String DOC_ID_FIELD = "doc_id";

    /**
     * The GET method.
     */
    protected static final String GET = "GET";

    /**
     * The POST method.
     */
    protected static final String POST = "POST";

    /**
     * The MIME type.
     */

     * The behavior for users.
     */
    @Resource
    protected UserBhv userBhv;

    /**
     * Constructor.
     */
    public RoleService() {
        super();
    }

    /**
     * Gets a list of roles based on the pager.
     * @param rolePager The pager for roles.
     * @return A list of roles.
     */
    public List<Role> getRoleList(final RolePager rolePager) {

            this.url = url;
            this.depth = depth;
        }

        /**
         * Gets the URL of this crawl request.
         *
         * @return the URL to be crawled
         */
        public String getUrl() {
            return url;
        }

        /**
         * Gets the depth of this crawl request in the crawling hierarchy.
         *
         * @return the crawling depth

    // A task should have been scheduled
    assertTrue(fakePool.hasNext());
    e.execute(intCounter);
    // Our executor hasn't run any tasks yet.
    assertEquals(0, totalCalls.get());
    fakePool.runAll();
    assertEquals(2, totalCalls.get());
    // Queue is empty so no runner should be scheduled.
    assertFalse(fakePool.hasNext());

    // Check that execute can be safely repeated
    e.execute(intCounter);

    }

    /**
     * Gets the user ID.
     *
     * @return the user ID
     */
    public String getUserId() {
        return userId;
    }

    /**
     * Sets the user ID.
     *
     * @param userId the user ID
     */
    public void setUserId(final String userId) {
        this.userId = userId;
    }

    /**
     * Gets the creation timestamp.
     *

    return new WeakReference<>(striped.get(new Object()));
  }

  public void testWeakReadWrite() {
    Striped<ReadWriteLock> striped = Striped.lazyWeakReadWriteLock(1000);
    Object key = new Object();
    Lock readLock = striped.get(key).readLock();
    WeakReference<Object> garbage = createGarbage();
    GcFinalization.awaitClear(garbage);
    Lock writeLock = striped.get(key).writeLock();
    readLock.lock();

    return new WeakReference<>(striped.get(new Object()));
  }

  public void testWeakReadWrite() {
    Striped<ReadWriteLock> striped = Striped.lazyWeakReadWriteLock(1000);
    Object key = new Object();
    Lock readLock = striped.get(key).readLock();
    WeakReference<Object> garbage = createGarbage();
    GcFinalization.awaitClear(garbage);
    Lock writeLock = striped.get(key).writeLock();
    readLock.lock();

        extraParams.put(key, value);
        return this;
    }

    /**
     * Gets a single extra parameter value.
     *
     * @param key the parameter key
     * @return the parameter value, or {@code null} if not set
     */
    public String getExtraParam(final String key) {
        return extraParams != null ? extraParams.get(key) : null;
    }

     */
    protected void registerBugReportItems(final RenderData data) {
        RenderDataUtil.register(data, "bugReportItems", getBugReportItems());
    }

    /**
     * Gets a list of environment variables as key-value pairs.
     *
     * @return list of environment variable items
     */
    public static List<Map<String, String>> getEnvItems() {

            }
            return null;
        }
        return session;
    }

    /**
     * Gets a session by ID.
     *
     * @param sessionId the session ID
     * @return the session, or null if not found or expired
     */
    public ChatSession getSession(final String sessionId) {