assertFalse(SsoResponseType.METADATA.equals(null));
        assertFalse(SsoResponseType.METADATA.equals("METADATA"));
    }

    @Test
    public void test_hashCode() {
        // Test hashCode consistency
        int metadataHashCode = SsoResponseType.METADATA.hashCode();
        int logoutHashCode = SsoResponseType.LOGOUT.hashCode();

        // Test that toString returns a non-null value
        String result = crawlerEngineClient.toString();
        assertNotNull(result);
    }

    // Test hashCode method
    @Test
    public void test_hashCode() {
        // Test that hashCode returns consistent value
        int hashCode1 = crawlerEngineClient.hashCode();
        int hashCode2 = crawlerEngineClient.hashCode();
        assertEquals(hashCode1, hashCode2);

        assertNotSame(exception1, exception2);
        assertFalse(exception1.equals(exception2));
        assertTrue(exception1.equals(exception1));
    }

    @Test
    public void test_hashCode() {
        // Test hashCode consistency
        DictionaryExpiredException exception = new DictionaryExpiredException();
        int hashCode1 = exception.hashCode();
        int hashCode2 = exception.hashCode();

  }

  /**
   * Returns the {@link Method} instance for {@link #testHashCode()} so that list tests on
   * unhashable objects can suppress it with {@code FeatureSpecificTestSuiteBuilder.suppressing()}.
   */
  @J2ktIncompatible
  @GwtIncompatible // reflection
  public static Method getHashCodeMethod() {
    return getMethod(ListHashCodeTester.class, "testHashCode");
  }

  }

  /**
   * Returns the {@link Method} instance for {@link #testHashCode()} so that list tests on
   * unhashable objects can suppress it with {@code FeatureSpecificTestSuiteBuilder.suppressing()}.
   */
  @J2ktIncompatible
  @GwtIncompatible // reflection
  public static Method getHashCodeMethod() {
    return getMethod(ListHashCodeTester.class, "testHashCode");
  }

// @Ignore affects the Android test runner, which respects JUnit 4 annotations on JUnit 3 tests.
@SuppressWarnings("JUnit4ClassUsedInJUnit3")
public class SetHashCodeTester<E> extends AbstractSetTester<E> {
  public void testHashCode() {
    int expectedHashCode = 0;
    for (E element : getSampleElements()) {
      expectedHashCode += (element == null) ? 0 : element.hashCode();
    }
    assertEquals(

// @Ignore affects the Android test runner, which respects JUnit 4 annotations on JUnit 3 tests.
@SuppressWarnings("JUnit4ClassUsedInJUnit3")
public class SetHashCodeTester<E> extends AbstractSetTester<E> {
  public void testHashCode() {
    int expectedHashCode = 0;
    for (E element : getSampleElements()) {
      expectedHashCode += (element == null) ? 0 : element.hashCode();
    }
    assertEquals(

// @Ignore affects the Android test runner, which respects JUnit 4 annotations on JUnit 3 tests.
@SuppressWarnings("JUnit4ClassUsedInJUnit3")
public class MapHashCodeTester<K, V> extends AbstractMapTester<K, V> {
  public void testHashCode() {
    int expectedHashCode = 0;
    for (Entry<K, V> entry : getSampleEntries()) {
      expectedHashCode += hash(entry);
    }
    assertEquals(

    assertFalse(entry(NE, 1).equals(control("bar", 1)));
    assertFalse(entry(NE, 1).equals(new Object()));
    assertFalse(entry(NE, 1).equals(null));
  }

  public void testHashCode() {
    assertEquals(control("foo", 1).hashCode(), entry("foo", 1).hashCode());
    assertEquals(control("bar", 2).hashCode(), entry("bar", 2).hashCode());
  }

  public void testHashCodeNull() {

    assertFalse(entry(NE, 1).equals(control("bar", 1)));
    assertFalse(entry(NE, 1).equals(new Object()));
    assertFalse(entry(NE, 1).equals(null));
  }

  public void testHashCode() {
    assertEquals(control("foo", 1).hashCode(), entry("foo", 1).hashCode());
    assertEquals(control("bar", 2).hashCode(), entry("bar", 2).hashCode());
  }

  public void testHashCodeNull() {