import java.time.Instant;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Optional;
import java.util.Set;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.Executors;
import java.util.concurrent.locks.ReadWriteLock;

## 🚀 Getting Started

### Requirements
- **Java 21 or higher** (Required for modern language features)
- **Maven 3.6+** or **Gradle 7+** for build management
- **Optional**: SLF4J or Commons Logging for logging support

### Maven Dependency
```xml
<dependency>
    <groupId>org.codelibs</groupId>
    <artifactId>corelib</artifactId>
    <version>0.7.0</version>
</dependency>

            final String lang) {
        return analyzeTextInternal(analyzer, field, text, lang, true);
    }

    /**
     * Internal method for analyzing text with optional reading support.
     * @param analyzer Analyzer
     * @param field Field
     * @param text Text
     * @param lang Language
     * @param useReading Whether to use reading analysis
     * @return List of tokens

     *
     * @return The model cache or {@code null} if not set.
     */
    ModelCache getModelCache();

    /**
     * Sets the model cache to use for reuse of previously built models. This is an optional component that serves
     * performance optimizations.
     *
     * @param modelCache The model cache to use, may be {@code null}.
     * @return This request, never {@code null}.
     */

TF_CAPI_EXPORT extern void TF_GraphImportGraphDef(
    TF_Graph* graph, const TF_Buffer* graph_def,
    const TF_ImportGraphDefOptions* options, TF_Status* status);

// Adds a copy of function `func` and optionally its gradient function `grad`
// to `g`. Once `func`/`grad` is added to `g`, it can be called by creating
// an operation using the function's name.
// Any changes to `func`/`grad` (including deleting it) done after this method

 * <ul>
 *   <li>Filters dependencies to include only those with transitive scopes (compile/runtime)</li>
 *   <li>Applies managed dependency metadata (version, scope, optional flag, exclusions) to direct dependencies</li>
 *   <li>Removes managed dependencies that are not used by direct dependencies</li>
 *   <li>Retains only managed dependencies that appear in the resolved dependency tree</li>
 * </ul>

 * Updating the table can change the contents of those collections, and updating the collections
 * will change the table.
 *
 * <p>All methods that modify the table are optional, and the views returned by the table may or may
 * not be modifiable. When modification isn't supported, those methods will throw an {@link
 * UnsupportedOperationException}.
 *
 * <h3>Implementations</h3>
 *
 * <ul>

// Every 10 seconds a space character is sent.
// keepHTTPReqResponseAlive will wait for the returned body to be read before starting the ticker.
// The returned function should always be called to release resources.
// An optional error can be sent which will be picked as text only error,
// without its original type by the receiver.
// waitForHTTPResponse should be used to the receiving side.

         * <p>The deletion process:</p>
         * <ul>
         *   <li>Checks if old document deletion is enabled</li>
         *   <li>Builds a query to find old documents for this configuration</li>
         *   <li>Optionally preserves expired documents based on configuration</li>
         *   <li>Executes the deletion query against the search engine</li>
         * </ul>
         */
        private void deleteOldDocs() {

import org.codelibs.fess.mylasta.action.FessUserBean;
import org.codelibs.fess.sso.SsoAuthenticator;
import org.codelibs.fess.sso.SsoResponseType;
import org.codelibs.fess.util.ComponentUtil;
import org.dbflute.optional.OptionalEntity;
import org.lastaflute.web.login.credential.LoginCredential;
import org.lastaflute.web.response.ActionResponse;
import org.lastaflute.web.response.HtmlResponse;
import org.lastaflute.web.util.LaRequestUtil;