* throws an {@link IllegalArgumentException} when presented with duplicate elements instead of
   * collapsing them to a single element or including duplicate instances in the collection.
   */
  REJECTS_DUPLICATES_AT_CREATION,

  SUPPORTS_ADD,
  SUPPORTS_REMOVE,
  SUPPORTS_ITERATOR_REMOVE,
  FAILS_FAST_ON_CONCURRENT_MODIFICATION,

  /**

  public void testAddNullReference() {
    assertThrows(NullPointerException.class, () -> equalsTester.addEqualityGroup((Object) null));
  }

  /** Test equalObjects after adding multiple instances at once with a null */
  public void testAddTwoEqualObjectsAtOnceWithNull() {
    assertThrows(
        NullPointerException.class,
        () -> equalsTester.addEqualityGroup(reference, equalObject1, null));
  }

import java.nio.ByteBuffer;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.Arrays;

/**
 * {@link HashFunction} adapter for {@link MessageDigest} instances.
 *
 * @author Kevin Bourrillion
 * @author Dimitris Andreou
 */
@Immutable
final class MessageDigestHashFunction extends AbstractHashFunction implements Serializable {

  }

  private static void testRotate(float[] input, int distance, float[] expectedOutput) {
    input = Arrays.copyOf(input, input.length);
    Floats.rotate(input, distance);
    assertThat(input).isEqualTo(expectedOutput);
  }

  private static void testRotate(
      float[] input, int distance, int fromIndex, int toIndex, float[] expectedOutput) {
    input = Arrays.copyOf(input, input.length);

  }

  private static void testRotate(int[] input, int distance, int[] expectedOutput) {
    input = Arrays.copyOf(input, input.length);
    Ints.rotate(input, distance);
    assertThat(input).isEqualTo(expectedOutput);
  }

  private static void testRotate(
      int[] input, int distance, int fromIndex, int toIndex, int[] expectedOutput) {
    input = Arrays.copyOf(input, input.length);

  }

  private static void testRotate(float[] input, int distance, float[] expectedOutput) {
    input = Arrays.copyOf(input, input.length);
    Floats.rotate(input, distance);
    assertThat(input).isEqualTo(expectedOutput);
  }

  private static void testRotate(
      float[] input, int distance, int fromIndex, int toIndex, float[] expectedOutput) {
    input = Arrays.copyOf(input, input.length);

        assertEquals(SsoResponseType.class, SsoResponseType.LOGOUT.getDeclaringClass());
    }

    @Test
    public void test_enumConstantReference() {
        // Test that enum constants are singleton instances
        SsoResponseType metadata1 = SsoResponseType.METADATA;
        SsoResponseType metadata2 = SsoResponseType.valueOf("METADATA");
        assertSame(metadata1, metadata2);

 * <ul>
 *   <li>Call {@link #clearCredentials()} after authentication is complete to clear sensitive data from memory</li>
 *   <li>Avoid logging instances of this class as it may expose credentials</li>
 *   <li>Consider using external secret management systems for credential storage in production</li>
 * </ul>
 *
 * @author shinsuke
 */
public class FtpAuthentication {

        // Test that serialVersionUID is properly defined
        FessSystemException exception1 = new FessSystemException("Test");
        FessSystemException exception2 = new FessSystemException("Test");

        // Both instances should be of the same class
        assertEquals(exception1.getClass(), exception2.getClass());
    }

    @Test
    public void test_throwAndCatch() {
        // Test throwing and catching the exception

import com.google.errorprone.annotations.CanIgnoreReturnValue;
import org.jspecify.annotations.Nullable;

/**
 * Standard implementation of {@link MutableValueGraph} that supports both directed and undirected
 * graphs. Instances of this class should be constructed with {@link ValueGraphBuilder}.
 *
 * <p>Time complexities for mutation methods are all O(1) except for {@code removeNode(N node)},