constraints.TypeFloat.message = {item}는 숫자여야 합니다.
constraints.TypeDouble.message = {item}는 숫자여야 합니다.
constraints.TypeAny.message = {item}를 {propertyType}으로 변환할 수 없습니다.
constraints.UriType.message = {item}에 인식할 수 없는 URI가 있습니다.
constraints.CronExpression.message = {item}는 올바른 CRON 표현식이 아닙니다.

# ----------------------------------------------------------
# Application Exception
# ---------------------

# Whether to ignore robots meta tags during crawling.
crawler.ignore.robots.tags=false
# Whether to ignore content exceptions during crawling.
crawler.ignore.content.exception=true
# HTTP status codes considered as failure URLs.
crawler.failure.url.status.codes=404
# Interval (seconds) for system monitor during crawling.
crawler.system.monitor.interval=60
# Whether to ignore idle threads in hot thread monitoring.

Em muitos casos a sua aplicação pode precisar de configurações externas, como chaves secretas, credenciais de banco de dados, credenciais para serviços de email, etc.

A maioria dessas configurações é variável (podem mudar), como URLs de bancos de dados. E muitas delas podem conter dados sensíveis, como tokens secretos.

Por isso é comum prover essas configurações como variáveis de ambiente que são utilizidas pela aplicação.

## Variáveis de Ambiente

http://%zz%66%a.com

# If we get an invalid character that has been escaped.
http://%25
http://hello%00

# Escaped numbers should be treated like IP addresses if they are.
# No special handling for IPv4 or IPv4-like URLs
http://%30%78%63%30%2e%30%32%35%30.01  s:http p:/ h:192.168.0.1
http://%30%78%63%30%2e%30%32%35%30.01%2e  s:http p:/ h:0xc0.0250.01.
http://192.168.0.257

# Invalid escaping should trigger the regular host error handling.

    public static final String SUCCESS_create_crawling_config_at_wizard = "{success.create_crawling_config_at_wizard}";

    /** The key of the message: Deleted failure URLs. */
    public static final String SUCCESS_failure_url_delete_all = "{success.failure_url_delete_all}";

    /** The key of the message: Deleted {0} file. */

			h.ServeHTTP(w, r)
			return
		}

		// CopyObject requests should be handled at current endpoint as path style
		// requests have target bucket and object in URI and source details are in
		// header fields
		if r.Method == http.MethodPut && r.Header.Get(xhttp.AmzCopySource) != "" {
			bucket, object = path2BucketObject(r.Header.Get(xhttp.AmzCopySource))

            final String[] docIds = userInfoHelper.getResultDocIds(URLDecoder.decode(queryId, Constants.UTF_8));
            if (docIds == null) {
                throw new WebApiException(HttpServletResponse.SC_BAD_REQUEST, "No searched urls.");
            }

            searchHelper
                    .getDocumentByDocId(docId, new String[] { fessConfig.getIndexFieldUrl(), fessConfig.getIndexFieldLang() },
                            OptionalThing.empty())

    /**
     * Create an {@code NtlmPasswordAuthentication} object from the userinfo
     * component of an SMB URL like "{@code domain;user:pass}". This constructor
     * is used internally be jCIFS when parsing SMB URLs.
     */

    /**
     * Create an NtlmPasswordAuthentication object from a userinfo string.
     *
     * @param userInfo the user information string in the format "domain;user:pass"
     */

            throw new PluginException("Failed to access " + artifactType, e);
        }
    }

    /**
     * Gets the list of configured plugin repositories.
     *
     * @return an array of repository URLs
     */
    protected String[] getRepositories() {
        return split(ComponentUtil.getFessConfig().getPluginRepositories(), ",")
                .get(stream -> stream.map(String::trim).toArray(n -> new String[n]));

     * protocols. The http/1.1 transport will never be dropped.
     *
     * If multiple protocols are specified, [ALPN][alpn] will be used to negotiate a transport.
     * Protocol negotiation is only attempted for HTTPS URLs.
     *
     * [Protocol.HTTP_1_0] is not supported in this set. Requests are initiated with `HTTP/1.1`. If
     * the server responds with `HTTP/1.0`, that will be exposed by [Response.protocol].
     *