c.mu.RLock()
	defer c.mu.RUnlock()
	if ent := c.evictList.Back(); ent != nil {
		return ent.Key, ent.Value, true
	}
	return
}

func (c *LRU[K, V]) KeyValues() map[K]V {
	c.mu.RLock()
	defer c.mu.RUnlock()
	maps := make(map[K]V)
	now := time.Now()
	for ent := c.evictList.Back(); ent != nil; ent = ent.PrevEntry() {
		if now.After(ent.ExpiresAt) {
			continue

        assertEquals(name, param.getName());
        assertNotNull(param.getValues());
        assertEquals(4, param.getValues().length);
        assertEquals("value1", param.getValues()[0]);
        assertNull(param.getValues()[1]);
        assertEquals("value3", param.getValues()[2]);
        assertNull(param.getValues()[3]);
    }

    @Test
    public void test_constructor_withSpecialCharacters() {

                responseHeaderMap.put(values[0], list);
            }
            final String[] keyValue = StringUtils.split(values[1], ":", 2);
            if (keyValue.length == 2) {
                list.add(new Pair<>(keyValue[0].trim(), keyValue[1].trim()));
            } else if (keyValue.length == 1) {
                list.add(new Pair<>(keyValue[0].trim(), StringUtil.EMPTY));
            } else {

        assertEquals("value1", dataMap.get("key1"));

        // Add an array - should merge with existing value
        String[] newValues = new String[] { "value2", "value3" };
        transformer.putResultDataBody(dataMap, "key1", newValues);

        Object result = dataMap.get("key1");
        assertTrue(result instanceof Object[]);
        Object[] resultArray = (Object[]) result;

     * Concatenates new values into an existing list, avoiding duplicates.
     */
    private static void concatValues(final List<String> existingValues, final String[] newValues) {
        if (newValues == null) {
            return;
        }
        for (final String value : newValues) {
            if (!existingValues.contains(value)) {
                existingValues.add(value);
            }
        }
    }

    /**

  static PairedStatsAccumulator createFilledPairedStatsAccumulator(
      List<Double> xValues, List<Double> yValues) {
    checkArgument(xValues.size() == yValues.size());
    PairedStatsAccumulator accumulator = new PairedStatsAccumulator();
    for (int index = 0; index < xValues.size(); index++) {
      accumulator.add(xValues.get(index), yValues.get(index));
    }
    return accumulator;
  }

  /**

                                if (bitsField != null && !bitsField.getValues().isEmpty()) {
                                    docMap.put(fessConfig.getQueryCollapseInnerHitsName() + "_hash", bitsField.getValues().get(0));
                                }

  static PairedStatsAccumulator createFilledPairedStatsAccumulator(
      List<Double> xValues, List<Double> yValues) {
    checkArgument(xValues.size() == yValues.size());
    PairedStatsAccumulator accumulator = new PairedStatsAccumulator();
    for (int index = 0; index < xValues.size(); index++) {
      accumulator.add(xValues.get(index), yValues.get(index));
    }
    return accumulator;
  }

  /**

     * Concatenates values to a destination list, avoiding duplicates.
     * @param dest The destination list.
     * @param newValues The new values to add.
     * @param <T> The type of the values.
     */
    protected static <T> void concatValues(final List<T> dest, final T... newValues) {
        for (final T value : newValues) {
            if (!dest.contains(value)) {
                dest.add(value);
            }
        }
    }

        assertEquals(2, result.length);
        assertEquals("q", result[0].getName());
        assertEquals("test", result[0].getValues()[0]);
        assertEquals("lang", result[1].getName());
        assertEquals("en", result[1].getValues()[0]);
        assertEquals("ja", result[1].getValues()[1]);
    }

    // Test addRewriter method
    @Test
    public void test_addRewriter() {