* instances is using {@link CacheBuilder}.
 *
 * <p>Implementations of this interface are expected to be thread-safe, and can be safely accessed
 * by multiple concurrent threads.
 *
 * <p>When evaluated as a {@link Function}, a cache yields the same result as invoking {@link
 * #getUnchecked}.
 *
 * @param <K> the type of the cache's keys, which are not permitted to be null

import java.lang.annotation.Target;

/**
 * Marks an event subscriber method as being thread-safe. This annotation indicates that EventBus
 * may invoke the event subscriber simultaneously from multiple threads.
 *
 * <p>This does not mark the method, and so should be used in combination with {@link Subscribe}.
 *
 * @author Cliff Biffle
 * @since 10.0
 */
@Retention(RetentionPolicy.RUNTIME)

/**
 * Unified authentication provider interface for SMB authentication
 *
 * This interface provides a consistent authentication mechanism across
 * SMB1, SMB2, and SMB3 protocols, addressing the issue of multiple
 * scattered authentication implementations.
 */
public interface AuthenticationProvider {

    /**
     * Authentication type enumeration
     */
    enum AuthType {

 * <p>
 * <strong>Thread-Safety:</strong> This class is <strong>NOT thread-safe</strong>.
 * It extends {@link LinkedHashMap} without synchronization. If multiple threads access
 * an instance concurrently, and at least one thread modifies the map structurally,
 * it must be synchronized externally.
 * </p>
 * <p>

   * the least significant bit zero is chosen. (In such cases, both of the nearest representable
   * values are even integers; this method returns the one that is a multiple of a greater power of
   * two.)
   *
   * @throws ArithmeticException if {@code mode} is {@link RoundingMode#UNNECESSARY} and {@code x}
   *     is not precisely representable as a {@code double}
   * @since 30.0
   */

  public static ArrayBasedEscaperMap create(Map<Character, String> replacements) {
    return new ArrayBasedEscaperMap(createReplacementArray(replacements));
  }

  // The underlying replacement array we can share between multiple escaper
  // instances.
  private final char[][] replacementArray;

  private ArrayBasedEscaperMap(char[][] replacementArray) {
    this.replacementArray = replacementArray;
  }

            // Then
            assertNotNull(copy);
        }

        @Test
        @DisplayName("Should create instance with source key and multiple chunks")
        void testConstructorWithMultipleChunks() {
            // Given
            byte[] sourceKey = new byte[SOURCE_KEY_SIZE];
            SrvCopychunk chunk1 = new SrvCopychunk(100, 200, 300);

    }

    /**
     * Test multiple close() calls (idempotency)
     */
    @Test
    @DisplayName("Test close() method is idempotent")
    public void testCloseIdempotent() {
        NtlmPasswordAuthenticator auth = new NtlmPasswordAuthenticator("user", "IdempotentPass123!");

        assertFalse(auth.isClosed());

        // Close multiple times
        auth.close();

        // Multiple wipes should not cause errors
        authenticator.secureWipePassword();
        authenticator.secureWipePassword();
        authenticator.secureWipePassword();

        assertNull(authenticator.getPassword(), "Password should remain null after multiple wipes");
    }

import java.util.Iterator;
import java.util.NoSuchElementException;

import org.codelibs.core.exception.ClUnsupportedOperationException;

/**
 * An {@link Iterator} that iterates over multiple {@link Iterator}s as if they were a single {@link Iterator}.
 * <p>
 * Usage example:
 * </p>
 *
 * <pre>
 * import static org.codelibs.core.collection.MultiIterator.*;
 *
 * List&lt;String&gt; list = ...;