.addEqualityGroup(table, hashCopy, reordered)
        .addEqualityGroup(smaller)
        .addEqualityGroup(swapOuter)
        .addEqualityGroup(swapValues)
        .testEquals();
  }

  public void testHashCode() {
    table = create("foo", 1, 'a', "bar", 1, 'b', "foo", 3, 'c');
    int expected =
        Objects.hash("foo", 1, 'a') + Objects.hash("bar", 1, 'b') + Objects.hash("foo", 3, 'c');

        assertNotEquals(auth1, auth3);
        assertNotEquals(auth1, auth4);
        assertNotEquals(auth1, new Object());
    }

    // Test hashCode method
    @Test
    void testHashCode() {
        NtlmPasswordAuthentication auth1 = new NtlmPasswordAuthentication("DOMAIN", "user", "password");
        NtlmPasswordAuthentication auth2 = new NtlmPasswordAuthentication("DOMAIN", "user", "password");

    assertFalse(entry(NK, 1).equals(control("bar", 1)));
    assertFalse(entry(NK, 1).equals(new Object()));
    assertFalse(entry(NK, 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() {

        assertVersionOlder("1.0-RC1", "1.0-SNAPSHOT");
        assertVersionOlder("1.0-rc1", "1.0-SNAPSHOT");
        assertVersionOlder("1.0-rc-1", "1.0-SNAPSHOT");
    }

    @Test
    void testHashCode() {
        ArtifactVersion v1 = newArtifactVersion("1");
        ArtifactVersion v2 = newArtifactVersion("1.0");
        assertTrue(v1.equals(v2));
        assertEquals(v1.hashCode(), v2.hashCode());
    }

    assertSame(mutex, ((SynchronizedSet<?>) entrySet).mutex);
  }

  public void testEquals() {
    boolean unused = create().equals(new HashMap<String, Integer>());
  }

  public void testHashCode() {
    int unused = create().hashCode();
  }

  public void testToString() {
    String unused = create().toString();
  }

  public void testSerialization() {

        assertFalse(info.equals(null));
        assertFalse(info.equals(new Object()));
    }

    @Test
    @DisplayName("Test hashCode method")
    void testHashCode() {
        SmbShareInfo info1 = new SmbShareInfo(TEST_NET_NAME, 0, TEST_REMARK);
        SmbShareInfo info2 = new SmbShareInfo(TEST_NET_NAME, 1, "Different");

        // Same netName should have same hashCode

        assertNotEquals(sid1, new Object());
    }

    /**
     * Test the hashCode method.
     *
     * @throws SmbException if the SID string is invalid
     */
    @Test
    void testHashCode() throws SmbException {
        SID sid1 = new SID(adminSidString);
        SID sid2 = new SID(adminSidBytes, 0);
        SID sid3 = new SID("S-1-1-0");

        assertEquals(sid1.hashCode(), sid2.hashCode());

  private static final byte[] VALUES = {Byte.MIN_VALUE, -1, 0, 1, Byte.MAX_VALUE};

  // We need to test that our method behaves like the JDK method.
  @SuppressWarnings("InlineMeInliner")
  public void testHashCode() {
    for (byte value : VALUES) {
      assertThat(Bytes.hashCode(value)).isEqualTo(Byte.hashCode(value));
    }
  }

  public void testContains() {
    assertThat(Bytes.contains(EMPTY, (byte) 1)).isFalse();

        }
    }

    @Nested
    @DisplayName("Equals and HashCode Tests")
    class EqualsHashCodeTests {

        @Test
        @DisplayName("Should calculate hashCode from MID")
        void testHashCode() {
            testMessage.setMid(12345L);
            assertEquals(12345, testMessage.hashCode());
        }

        @Test
        @DisplayName("Should be equal when MIDs match")

  private static final char[] VALUES = {LEAST, 'a', '\u00e0', '\udcaa', GREATEST};

  // We need to test that our method behaves like the JDK method.
  @SuppressWarnings("InlineMeInliner")
  public void testHashCode() {
    for (char value : VALUES) {
      assertThat(Chars.hashCode(value)).isEqualTo(Character.hashCode(value));
    }
  }

  public void testCheckedCast() {
    for (char value : VALUES) {