this.backingThreadFactory = checkNotNull(backingThreadFactory);
    return this;
  }

  /**
   * Returns a new thread factory using the options supplied during the building process. After
   * building, it is still possible to change the options used to build the ThreadFactory and/or
   * build again. State is not shared amongst built instances.
   *
   * <p><b>Java 21+ users:</b> use {@link Thread.Builder#factory()} instead.
   *

    </dependency>
    <dependency>
      <groupId>org.apache.maven.resolver</groupId>
      <artifactId>maven-resolver-transport-file</artifactId>
    </dependency>
    <!-- HTTP/1.1, lowest priority, Java8+ (still must as some ITs force it) -->
    <dependency>
      <groupId>org.apache.maven.resolver</groupId>
      <artifactId>maven-resolver-transport-wagon</artifactId>
    </dependency>
    <!-- HTTP/1.1, medium priority, Java8+ -->

    // notifications for all of them.
    for (int i = 0; i < nSeededEntries; i++) {
      assertEquals("b" + i, removalNotifications.get("b" + i));
    }

    // Each of the values added to the map should either still be there, or have seen a removal
    // notification.
    assertEquals(expectedKeys, Sets.union(cache.asMap().keySet(), removalNotifications.keySet()));

    // notifications for all of them.
    for (int i = 0; i < nSeededEntries; i++) {
      assertEquals("b" + i, removalNotifications.get("b" + i));
    }

    // Each of the values added to the map should either still be there, or have seen a removal
    // notification.
    assertEquals(expectedKeys, Sets.union(cache.asMap().keySet(), removalNotifications.keySet()));

way back, and barking hoarsely all the while, till at last it sat
down a good way off, panting, with its tongue hanging out of its
mouth, and its great eyes half shut.

  This seemed to Alice a good opportunity for making her escape;
so she set off at once, and ran till she was quite tired and out
of breath, and till the puppy's bark sounded quite faint in the
distance.

        PrefixQuery prefixQuery = new PrefixQuery(new Term("title", ""));

        QueryBuilder builder = queryProcessor.execute(context, prefixQuery, 1.0f);

        assertNotNull(builder);
        // Empty prefix should still create a valid query
        assertTrue(builder instanceof MatchPhrasePrefixQueryBuilder);

        MatchPhrasePrefixQueryBuilder mpqb = (MatchPhrasePrefixQueryBuilder) builder;
        assertEquals("", mpqb.value());

        DirectoryCacheEntry entry = directoryCache.get(directoryPath);

        // Check if cache entry is valid
        if (entry != null && entry.needsRefresh()) {
            // Check if lease is still valid
            LeaseManager.LeaseEntry leaseEntry = baseLeaseManager.getLease(entry.getLeaseKey());
            if (leaseEntry == null || !leaseEntry.hasReadCache()) {
                // Lease lost, remove cache entry

 * that every {@code Runnable} that is {@linkplain #add added} will be executed after {@link
 * #execute()} is called. Any {@code Runnable} added after the call to {@code execute} is still
 * guaranteed to execute. There is no guarantee, however, that listeners will be executed in the
 * order that they are added.
 *
 * <p>Exceptions thrown by a listener will be propagated up to the executor. Any exception thrown

        assertTrue(entry.hasChanges());

        // Remove non-existent child - should not change state
        entry.removeChild("nonexistent.txt");
        assertTrue(entry.hasChanges()); // Still has changes from previous removal
    }

    @Test
    public void testGetChildren() {
        // Add multiple children
        entry.updateChild("file1.txt", 1024L, 1000L, false, 0x20, 500L, 800L);

   *         .put(BarHandler.class, new SubBarHandler())
   *         .put(Handler.class, new QuuxHandler())
   *         .build();
   * }
   *
   * <p>After invoking {@link #build()} it is still possible to add more entries and build again.
   * Thus each map generated by this builder will be a superset of any map generated before it.
   *
   * @since 2.0
   */
  public static final class Builder<B> {