The important thing to keep in mind is that the `sub` key should have a unique identifier across the entire application, and it should be a string.

## Check it { #check-it }

        Thread.sleep(100);
        try (FileWriter writer = new FileWriter(lmhostsFile)) {
            writer.write("192.168.1.200 NEWHOST\n");
        }

        // Should reload file and find new host
        result = lmhosts.getByName("NEWHOST", mockContext);
        assertNotNull(result);

        // Old host should not be found
        result = lmhosts.getByName("TESTHOST", mockContext);

            }
            return req.isSecure();
        }).orElse(false);
    }

    /**
     * Extracts the user code from the user identification cookie.
     * Searches through all request cookies to find the user identification cookie and validates its value.
     *
     * @param request the HTTP servlet request
     * @return the user code from the cookie, or null if not found or invalid
     */

    /** The key of the message: SSO login process failed. */
    public static final String ERRORS_sso_login_error = "{errors.sso_login_error}";

    /** The key of the message: Could not find {0}. */
    public static final String ERRORS_could_not_find_log_file = "{errors.could_not_find_log_file}";

    /** The key of the message: Failed to start a crawl process. */

        if (!restrictions.isEmpty()) {
            for (Restriction r : restrictions) {
                if (recommendedVersion != null && r.containsVersion(recommendedVersion)) {
                    // if we find the original, use that
                    version = recommendedVersion;
                    break;
                } else if (version == null
                        && restriction.getRecommendedVersion() != null

 * asynchronous operations. You can chain them together manually with calls to methods like {@link
 * Futures#transform(ListenableFuture, Function, Executor) Futures.transform}, but you will often
 * find it easier to use a framework. Frameworks automate the process, often adding features like
 * monitoring, debugging, and cancellation. Examples of frameworks include:
 *
 * <ul>

     * This method queries the search engine for child documents and extracts their URLs.
     *
     * @param searchEngineClient the search engine client to query
     * @param id the parent document ID to find children for
     * @return a set of RequestData objects for the child URLs, or null if no children found
     */
    protected Set<RequestData> getChildUrlSet(final SearchEngineClient searchEngineClient, final String id) {

     */
    @Nonnull
    List<XmlNode> children();

    /**
     * Returns the first child node with the specified name.
     *
     * @param name the name of the child node to find
     * @return the first matching child node, or {@code null} if none found
     */
    @Nullable
    XmlNode child(String name);

    /**

type endpointSet struct {
	argPatterns []ellipses.ArgPattern
	endpoints   []string   // Endpoints saved from previous GetEndpoints().
	setIndexes  [][]uint64 // All the sets.
}

// Supported set sizes this is used to find the optimal
// single set size.
var setSizes = []uint64{2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16}

// getDivisibleSize - returns a greatest common divisor of
// all the ellipses sizes.

	inputQuery := r.URL.Query()
	// case where some headers need to get from request query
	signedHeaders = append(signedHeaders, "x-amz-server-side-encryption")
	// expect to fail with `ErrUnsignedHeaders` because couldn't find some header
	_, errCode = extractSignedHeaders(signedHeaders, r)
	if errCode != ErrUnsignedHeaders {
		t.Fatalf("Expected the APIErrorCode to %d, but got %d", ErrUnsignedHeaders, errCode)
	}