* @throws IOException if an I/O error occurs
     */
    SID getOwnerGroup() throws IOException;

    /**
     * Return the owner group SID for this file or directory
     *
     * @param resolve
     *            whether to resolve the group name
     * @return the owner group SID, <code>null</code> if not present
     * @throws IOException if an I/O error occurs

     */
    /**
     * Checks if the rule manager contains the specified rule.
     * @param rule the rule to check for
     * @return true if the rule is present, false otherwise
     */
    @Override
    public boolean hasRule(final Rule rule) {
        return ruleList.contains(rule);
    }

    /*
     * (non-Javadoc)
     *
     * @see

  }

  /**
   * If a value is present in {@code optional}, returns a stream containing only that element,
   * otherwise returns an empty stream.
   */
  public static <T> Stream<T> stream(com.google.common.base.Optional<T> optional) {
    return optional.isPresent() ? Stream.of(optional.get()) : Stream.empty();
  }

  /**
   * If a value is present in {@code optional}, returns a stream containing only that element,

        // Verify no metadata extracted
        assertNull(extractData.getValues("title"));
        assertNull(extractData.getValues("author"));

        // But content should still be present
        final String content = extractData.getContent();
        assertTrue(content.contains("Sample Document"));
    }

    public void test_maxDepth() {
        jsonExtractor.setMaxDepth(1);

  /** Returns the authentication scheme, like `Basic`. */
  @get:JvmName("scheme") val scheme: String,
  authParams: Map<String?, String>,
) {
  /**
   * Returns the auth params, including [realm] and [charset] if present, but as
   * strings. The map's keys are lowercase and should be treated case-insensitively.
   */
  @get:JvmName("authParams")
  val authParams: Map<String?, String>

  /** Returns the protection space. */

import org.jspecify.annotations.Nullable;

/**
 * A {@link MapIteratorCache} that adds additional caching. In addition to the caching provided by
 * {@link MapIteratorCache}, this structure caches values for the two most recently retrieved keys.
 *
 * @author James Sexton
 */
final class MapRetrievalCache<K, V> extends MapIteratorCache<K, V> {
  // See the note about volatile in the superclass.

@SuppressWarnings("JUnit4ClassUsedInJUnit3")
public class MapGetTester<K, V> extends AbstractMapTester<K, V> {
  @CollectionSize.Require(absent = ZERO)
  public void testGet_yes() {
    assertEquals("get(present) should return the associated value", v0(), get(k0()));
  }

  public void testGet_no() {
    assertNull("get(notPresent) should return null", get(k3()));
  }

  @MapFeature.Require(ALLOWS_NULL_KEY_QUERIES)

        CloseableUtil.closeQuietly(in);

        // Verify no column metadata
        assertNull(extractData.getValues("columns"));

        // But content should still be present
        final String content = extractData.getContent();
        assertTrue(content.contains("John Doe"));
    }

    public void test_delimiterDetection() {
        // The test.csv uses comma delimiter

        // Assert
        assertEquals(2283323396289696982L, value, "serialVersionUID should be stable");
    }

    // Behavior check: toString contains class name and message when present
    @Test
    @DisplayName("toString contains class name and message when provided")
    void toString_containsClassName_and_Message() {
        // Arrange
        String msg = "signature invalid";

    expectUnchanged();
  }

  @CollectionFeature.Require(SUPPORTS_ITERATOR_REMOVE)
  @CollectionSize.Require(absent = ZERO)
  public void testRemoveIf_sometimesTrue() {
    assertTrue(
        "removeIf(isEqual(present)) should return true",
        collection.removeIf(Predicate.isEqual(samples.e0())));
    expectMissing(samples.e0());
  }

  @CollectionFeature.Require(SUPPORTS_ITERATOR_REMOVE)
  @CollectionSize.Require(absent = ZERO)