Object key = new Object();
    Object value = new Object();
    LoadingCache<Object, Object> cache =
        builder.build(CacheLoader.from(Suppliers.ofInstance(value)));
    assertSame(value, cache.getUnchecked(key));
    assertEquals(0, cache.size());
    assertFalse(cache.asMap().containsKey(key));
  }

  public void testCacheBuilderFrom_string() {

}

func newWarmBackendMinIO(conf madmin.TierMinIO, tier string) (*warmBackendMinIO, error) {
	// Validation of credentials
	if conf.AccessKey == "" || conf.SecretKey == "" {
		return nil, errors.New("both access and secret keys are required")
	}

	if conf.Bucket == "" {
		return nil, errors.New("no bucket name was provided")
	}

	u, err := url.Parse(conf.Endpoint)
	if err != nil {
		return nil, err
	}

# Settings and Environment Variables { #settings-and-environment-variables }

In many cases your application could need some external settings or configurations, for example secret keys, database credentials, credentials for email services, etc.

Most of these settings are variable (can change), like database URLs. And many could be sensitive, like secrets.

For this reason it's common to provide them in environment variables that are read by the application.

/// tip

     */
    @Deprecated(since = "4.0.0", forRemoval = true)
    String ID_COMBINATION_MODE_ATTRIBUTE = XmlService.ID_COMBINATION_MODE_ATTRIBUTE;

    /**
     * In case of complex XML structures, combining can be done based on keys.
     * This is a comma separated list of attribute names.
     */
    @Deprecated(since = "4.0.0", forRemoval = true)
    String KEYS_COMBINATION_MODE_ATTRIBUTE = XmlService.KEYS_COMBINATION_MODE_ATTRIBUTE;

    /**

		}
	}
}

// TestExtractSignedHeaders - Tests validate extraction of signed headers using list of signed header keys.
func TestExtractSignedHeaders(t *testing.T) {
	signedHeaders := []string{"host", "x-amz-content-sha256", "x-amz-date", "transfer-encoding"}

	// If the `expect` key exists in the signed headers then golang server would have stripped out the value, expecting the `expect` header set to `100-continue` in the result.

     *
     * @see org.codelibs.fess.crawler.helper.LogHelper#log(org.codelibs.fess.crawler.log.LogType,
     * java.lang.Object)
     */
    @Override
    public void log(final LogType key, final Object... objs) {
        switch (key) {
        case START_THREAD:
            processStartThread(objs);
            break;
        case START_CRAWLING:
            processStartCrawling(objs);
            break;

        return doGetConditionQuery();
    }

    // ===================================================================================
    //                                                                         Primary Key
    //                                                                         ===========
    public BoostDocumentRuleCB acceptPK(String id) {
        assertObjectNotNull("id", id);
        BsBoostDocumentRuleCB cb = this;

        return doGetConditionQuery();
    }

    // ===================================================================================
    //                                                                         Primary Key
    //                                                                         ===========
    public FileAuthenticationCB acceptPK(String id) {
        assertObjectNotNull("id", id);
        BsFileAuthenticationCB cb = this;

        return doGetConditionQuery();
    }

    // ===================================================================================
    //                                                                         Primary Key
    //                                                                         ===========
    public KeyMatchCB acceptPK(String id) {
        assertObjectNotNull("id", id);
        BsKeyMatchCB cb = this;

        return doGetConditionQuery();
    }

    // ===================================================================================
    //                                                                         Primary Key
    //                                                                         ===========
    public LabelTypeCB acceptPK(String id) {
        assertObjectNotNull("id", id);
        BsLabelTypeCB cb = this;