FilenameFilter filter = new PatternFilenameFilter("a+");
    assertTrue(filter.accept(dir, "a"));
    assertTrue(filter.accept(dir, "aaaa"));
    assertFalse(filter.accept(dir, "b"));

    // Show that dir is ignored
    assertTrue(filter.accept(null, "a"));
  }

  public void testNulls() throws Exception {
    NullPointerTester tester = new NullPointerTester();

import java.io.InvalidObjectException;
import java.io.ObjectInputStream;
import java.io.Serializable;
import org.jspecify.annotations.Nullable;

/**
 * List returned by {@link ImmutableCollection#asList} that delegates {@code contains} checks to the
 * backing collection.
 *
 * @author Jared Levy
 * @author Louis Wasserman
 */
@GwtCompatible
@SuppressWarnings("serial")

@IgnoreJRERequirement // We opt into library desugaring for our tests.
public class CollectionStreamTester<E> extends AbstractCollectionTester<E> {
  /*
   * We're not really testing the implementation of Stream, only that we're getting a Stream
   * that corresponds to the expected elements.
   */

  @CollectionFeature.Require(absent = KNOWN_ORDER)
  public void testStreamToArrayUnknownOrder() {

        super.setUp(testInfo);
        provider = new FessListedClassificationProvider();
    }

    @Test
    public void test_provide_notFound() {
        // Test with various classification names that should not be found
        assertProvideThrowsException("TestClassification");
        assertProvideThrowsException("NonExistent");
        assertProvideThrowsException("");

   * favor of supporting what's actually used in practice. That means if these assertions ever fail,
   * the implementation will need to be revisited to support a more flexible rule.
   */
  private fun assertWildcardRule(rule: String) {
    check(rule.startsWith(WILDCARD_CHAR)) {
      """Wildcard Assertion Failure: '$rule'

  }

  /** Confirm that get() returns a List implementing RandomAccess. */
  public void testGetRandomAccess() {
    Multimap<String, Integer> multimap = create();
    multimap.put("foo", 1);
    multimap.put("foo", 3);
    assertTrue(multimap.get("foo") instanceof RandomAccess);
    assertTrue(multimap.get("bar") instanceof RandomAccess);
  }

  /** Confirm that removeAll() returns a List implementing RandomAccess. */

  /**
   * Creates and returns a new evicting queue that will hold up to {@code maxSize} elements.
   *
   * <p>When {@code maxSize} is zero, elements will be evicted immediately after being added to the
   * queue.
   */
  public static <E> EvictingQueue<E> create(int maxSize) {
    return new EvictingQueue<>(maxSize);
  }

  /**
   * Returns the number of additional elements that this queue can accept without evicting; zero if

    }

    @Test
    public void test_expired_method_can_be_called() {
        // Instead of directly calling expired() which may fail due to system dependencies
        // in test environments, we test that the method exists and can be invoked
        // without throwing unexpected exceptions
        try {
            // Create a new instance to ensure clean state

import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.jspecify.annotations.Nullable;

/**
 * Implementation of {@code Multimap} that uses an {@code ArrayList} to store the values for a given
 * key. A {@link HashMap} associates each key with an {@link ArrayList} of values.
 *

import org.opensearch.index.query.QueryBuilder;
import org.opensearch.index.query.QueryBuilders;

/**
 * Job for purging expired documents from the search index.
 * This job removes documents that have passed their expiration time based on the expires field.
 * It helps maintain the search index by cleaning up outdated content automatically.
 */
public class PurgeDocJob {

    /** Logger instance for this class */