* (https://bugs.openjdk.org/browse/JDK-7121314) and before Lollipop
   * (https://r.android.com/47508). We *would* need to worry for J2KT, whose own concurrency support
   * is evolving (b/381065164, b/458160722), but this class is @J2ktIncompatible.
   *
   * 2. The superclass toArray() method declares the more general return type `@Nullable Object[]`,
   * but we know that our values will never be `null`.

            logger.warn("Could not get a base tag. ", e);
        }
        return null;
    }

    /**
     * Extracts URLs from HTML tag attributes using XPath.
     *
     * @param url the base URL for resolving relative URLs
     * @param document the document to extract URLs from
     * @param xpath the XPath expression to select elements
     * @param attr the attribute name to extract URLs from

            try {
                final CIFSContext context = file.getContext();
                if (logger.isDebugEnabled()) {
                    logger.debug("Resolving group SIDs: {}", sid);
                }
                final SID[] children = context.getSIDResolver()
                        .getGroupMemberSids(context, file.getServer(), sid.getDomainSid(), sid.getRid(),

        for (final RequestData requestData : anchorList) {
            urlList.add(requestData.getUrl());
        }
        return urlList;
    }

    /**
     * Gets the base URI for resolving relative URLs.
     *
     * @param currentUrl the current URL
     * @param baseHref the base href value from HTML
     * @return the base URI
     * @throws URISyntaxException if the URI is malformed