SingletonImmutableSet(E element) {
    this.element = Preconditions.checkNotNull(element);
  }

  @Override
  public int size() {
    return 1;
  }

  @Override
  public boolean contains(@Nullable Object target) {
    return element.equals(target);
  }

  @Override
  public UnmodifiableIterator<E> iterator() {
    return singletonIterator(element);
  }

  @Override

    protected String getValidationError(final String badWord) {
        if (Strings.isNullOrEmpty(badWord)) {
            return "badWord was empty.";
        }
        if (badWord.contains(" ") || badWord.contains("  ")) {
            return "badWord contains space.";
        }
        return null;
    }

    /**
     * Update default bad words.
     */
    protected static void updateDefaultBadwords() {

        assertTrue(result.getEffectiveModel()
                .getProfiles()
                .get(1)
                .getActivation()
                .getFile()
                .getExists()
                .contains(BASE_DIR));
    }

    private static Model readPom(File file) throws Exception {
        try (InputStream is = Files.newInputStream(file.toPath())) {
            return new MavenStaxReader().read(is);
        }

import static com.google.common.hash.Hashing.sha512;
import static com.google.common.hash.Hashing.sipHash24;

import org.jspecify.annotations.NullUnmarked;

/**
 * An enum that contains all of the known hash functions.
 *
 * @author Kurt Alfred Kluever
 */
@SuppressWarnings("deprecation") // We still need to test our deprecated APIs.
@NullUnmarked
enum HashFunctionEnum {
  ADLER32(adler32()),

        .containsExactly(immutableEntry(4, "d"), immutableEntry(2, "b"))
        .inOrder();
    assertThat(diff1.entriesOnlyOnRight().entrySet()).contains(immutableEntry(6, "z"));
    assertThat(diff1.entriesInCommon().entrySet()).contains(immutableEntry(1, "a"));
    assertThat(diff1.entriesDiffering().entrySet())
        .containsExactly(
            immutableEntry(5, ValueDifferenceImpl.create("e", "g")),

	if strings.Contains(s, "\r") {
		log.Printf("%s: contains CRLFs", filename)
		exitCode = 1
	}
	if filepath.Base(filename) == "go1.4.txt" {
		// No use for blank lines in api files, except go1.4.txt
		// used them in a reasonable way and we should let it be.
	} else if strings.HasPrefix(s, "\n") || strings.Contains(s, "\n\n") {
		log.Printf("%s: contains a blank line", filename)
		exitCode = 1
	}

            return delegate.entrySet();
          }

          @Override
          public boolean contains(@Nullable Object object) {
            if (object instanceof Entry<?, ?> && ((Entry<?, ?>) object).getKey() == null) {
              return false;
            }
            try {
              return super.contains(object);
            } catch (ClassCastException e) {
              return false;
            }
          }

import java.util.ArrayList;
import java.util.List;

import org.codelibs.fess.suggest.request.Response;

/**
 * Represents the response of a suggest index operation.
 * This class contains information about the number of suggest documents,
 * the number of input documents, any errors that occurred during the operation,
 * and the time taken to complete the operation.
 */

        : Iterators.singletonIterator(connectingEdge);
  }

  @Override
  public int size() {
    return getConnectingEdge() == null ? 0 : 1;
  }

  @Override
  public boolean contains(@Nullable Object edge) {
    E connectingEdge = getConnectingEdge();
    return connectingEdge != null && connectingEdge.equals(edge);
  }

  private @Nullable E getConnectingEdge() {

        assertEquals(1630000001000L, resp.getLastWriteTime());
        assertEquals(2048, resp.getSize());
        // toString() uses lastWriteTime directly without offset
        assertTrue(resp.toString().contains(new Date(1630000000000L).toString()));
    }

    // Buffer helpers to build SMB basic file info wire format.
    // SMB uses little-endian byte order
    private static void writeLong(byte[] buf, int offset, long val) {