*/
  protected NavigableSet<K> standardDescendingKeySet() {
    return descendingMap().navigableKeySet();
  }

  /**
   * A sensible definition of {@link #subMap(Object, Object)} in terms of {@link #subMap(Object,
   * boolean, Object, boolean)}. If you override {@code subMap(K, boolean, K, boolean)}, you may
   * wish to override {@code subMap} to forward to this implementation.
   */
  @Override

   */
  protected NavigableSet<K> standardDescendingKeySet() {
    return descendingMap().navigableKeySet();
  }

  /**
   * A sensible definition of {@link #subMap(Object, Object)} in terms of {@link #subMap(Object,
   * boolean, Object, boolean)}. If you override {@code subMap(K, boolean, K, boolean)}, you may
   * wish to override {@code subMap} to forward to this implementation.
   */
  @Override

        Map<String, Object> document = new HashMap<>();
        String[] values = parser.getFieldValues(document, "nonexistent");

        assertEquals("Non-existent field should return empty array", 0, values.length);
    }

    @Test
    public void test_getFieldValues_emptyList() throws Exception {
        Map<String, Object> document = new HashMap<>();

    WeakReference<Object> ref = createWeakReferenceWithFinalizer(finalizerRan);

    await(finalizerRan);
    awaitClear(ref);

    // Hope to catch some stragglers queued up behind our finalizable object
    System.runFinalization();
  }

  private static WeakReference<Object> createWeakReferenceWithFinalizer(
      CountDownLatch finalizerRan) {
    Object referent = new Object();

        setCreatedBy_GreaterThan(createdBy, null);
    }

    public void setCreatedBy_GreaterThan(String createdBy, ConditionOptionCall<RangeQueryBuilder> opLambda) {
        final Object _value = createdBy;
        RangeQueryBuilder builder = regRangeQ("createdBy", ConditionKey.CK_GREATER_THAN, _value);
        if (opLambda != null) {
            opLambda.callback(builder);
        }
    }

        setBoostExpr_GreaterThan(boostExpr, null);
    }

    public void setBoostExpr_GreaterThan(String boostExpr, ConditionOptionCall<RangeQueryBuilder> opLambda) {
        final Object _value = boostExpr;
        RangeQueryBuilder builder = regRangeQ("boostExpr", ConditionKey.CK_GREATER_THAN, _value);
        if (opLambda != null) {
            opLambda.callback(builder);
        }
    }

        setCreatedBy_GreaterThan(createdBy, null);
    }

    public void setCreatedBy_GreaterThan(String createdBy, ConditionOptionCall<RangeQueryBuilder> opLambda) {
        final Object _value = createdBy;
        RangeQueryBuilder builder = regRangeQ("createdBy", ConditionKey.CK_GREATER_THAN, _value);
        if (opLambda != null) {
            opLambda.callback(builder);
        }
    }

        setCreatedBy_GreaterThan(createdBy, null);
    }

    public void setCreatedBy_GreaterThan(String createdBy, ConditionOptionCall<RangeQueryBuilder> opLambda) {
        final Object _value = createdBy;
        RangeQueryBuilder builder = regRangeQ("createdBy", ConditionKey.CK_GREATER_THAN, _value);
        if (opLambda != null) {
            opLambda.callback(builder);
        }
    }

     * Extracts the URL from the target object using reflection.
     *
     * @param target The target object.
     * @return The URL string, or null if not found.
     */
    private String getUrl(final Object target) {
        final BeanDesc beanDesc = BeanDescFactory.getBeanDesc(target.getClass());
        final PropertyDesc sessionIdProp = beanDesc.getPropertyDesc(URL);
        final Object sessionId = sessionIdProp.getValue(target);

    }

    public LocalDateTime getRequestedAt() {
        return getUpdatedAt();
    }

    public void addField(final String key, final Object value) {
        fields.put(key, value);
    }

    @Override
    public Map<String, Object> toSource() {
        final Map<String, Object> sourceMap = super.toSource();
        if (fields != null) {
            sourceMap.putAll(fields);
        }
        return sourceMap;
    }