*/
    protected final int limitSize;

    /**
     * Creates an {@link LruHashMap}.
     *
     * @param limitSize the upper limit on the number of entries
     */
    public LruHashMap(final int limitSize) {
        this(limitSize, DEFAULT_INITIAL_CAPACITY, DEFAULT_LOAD_FACTOR);
    }

    /**
     * Creates an {@link LruHashMap}.
     *
     * @param limitSize the upper limit on the number of entries

import java.util.AbstractSet;
import java.util.ConcurrentModificationException;
import java.util.Iterator;
import java.util.Set;

/**
 * A {@link Set} implementation that stores its elements in a {@link LruHashMap}.
 * <p>
 * This set has a fixed maximum capacity. When the capacity is reached and a new element is added,
 * the least recently used element is removed.
 * </p>
 * @author shinsuke

/**
 * @author taichi
 */
public class LruHashMapTest {

    /**
     * @throws Exception
     */
    @Test
    public void testAll() throws Exception {
        final LruHashMap<String, String> lru = new LruHashMap<String, String>(3);
        lru.put("aaa", "111");
        lru.put("bbb", "222");
        lru.put("ccc", "333");
        assertThat(lru.get("aaa"), is("111"));

## Repository Structure

```
src/main/java/org/codelibs/core/
├── beans/       # Bean manipulation & introspection (converter/, factory/, impl/, util/)
├── collection/  # Enhanced collections (LruHashMap, CaseInsensitiveMap)
├── concurrent/  # Concurrency utilities
├── convert/     # Type conversion (*ConversionUtil)
├── crypto/      # Cipher & encryption (CachedCipher)
├── exception/   # Runtime exception wrappers

String last = CollectionsUtil.getLast(sequenced);
SequencedCollection<String> reversed = CollectionsUtil.reversed(sequenced);

// Specialized collections
LruHashMap<String, Object> lruCache = new LruHashMap<>(100); // LRU cache with max 100 entries
CaseInsensitiveMap<String> configMap = new CaseInsensitiveMap<>();
```

### Resource Management
```java
import org.codelibs.core.io.*;

 */
package org.codelibs.fess.helper;

import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.UUID;

import org.codelibs.core.collection.LruHashMap;
import org.codelibs.core.lang.StringUtil;
import org.codelibs.fess.Constants;
import org.codelibs.fess.mylasta.direction.FessConfig;
import org.codelibs.fess.util.ComponentUtil;

import java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.Map;

import org.apache.commons.lang3.StringUtils;
import org.apache.logging.log4j.Logger;
import org.codelibs.core.collection.LruHashMap;
import org.codelibs.core.lang.StringUtil;
import org.codelibs.fess.Constants;
import org.codelibs.fess.crawler.entity.AccessResult;
import org.codelibs.fess.crawler.entity.AccessResultData;