*
     * @return The search request type.
     */
    public abstract SearchRequestType getType();

    /**
     * Returns the similar document hash.
     *
     * @return The similar document hash.
     */
    public abstract String getSimilarDocHash();

    /**
     * Returns the track total hits.
     *
     * @return The track total hits.
     */

     *
     * @see java.lang.Object#hashCode()
     */
    @Override
    public int hashCode() {
        int hash;
        try {
            hash = getAddress().hashCode();
        } catch (final CIFSException uhe) {
            hash = getServer().toUpperCase().hashCode();
        }
        return hash + getURLPath().toUpperCase().hashCode();
    }

    /**
     * {@inheritDoc}
     *

    }

    /**
     * Calculates the LMv2 response using a pre-computed NT password hash.
     *
     * @param tc the CIFS context
     * @param type2 the Type-2 message containing the server challenge
     * @param domain the domain name
     * @param user the username
     * @param passwordHash
     *            NT password hash
     * @param clientChallenge the client challenge bytes
     * @return the calculated response

    // Secure key management
    private SecureKeyManager keyManager;
    private String sessionId;
    private volatile boolean closed = false;

    // Store session key and preauth hash for key rotation
    private byte[] sessionKey;
    private byte[] preauthIntegrityHash;
    private int rotationCount = 0;

    // Key rotation tracking - use atomic for lock-free operations

    @DisplayName("Should return selected preauth hash")
    void testGetSelectedPreauthHash() throws Exception {
        // Given
        setPrivateField(response, "selectedPreauthHash", PreauthIntegrityNegotiateContext.HASH_ALGO_SHA512);

        // When
        int hash = response.getSelectedPreauthHash();

        // Then
        assertEquals(PreauthIntegrityNegotiateContext.HASH_ALGO_SHA512, hash);
    }

    @Test

                }
            } catch (final ExecutionException e) {
                logger.debug("Failed to access resource hash cache: path={}", input, e);
            }
        }
        return LaResponseUtil.getResponse().encodeURL(sb.toString());
    }

    /**
     * Encodes a string for similar document hash processing.
     *
     * @param input the string to encode

    <function-signature>java.lang.String url(java.lang.String)</function-signature>
    <example>&lt;a href="${fe:url(param:info)}" ...</example>
  </function>

  <function>
    <description>Encode Similar Document Hash.</description>
    <name>sdh</name>
    <function-class>org.codelibs.fess.taglib.FessFunctions</function-class>
    <function-signature>java.lang.String sdh(java.lang.String)</function-signature>

 */
public class LruHashSet<E> extends AbstractSet<E> implements Set<E>, java.io.Serializable {
    private static final long serialVersionUID = 1L;

    /**
     * The internal LRU hash map used to store elements.
     */
    private final LruHashMap<E, Object> map;

    // Dummy value to associate with an Object in the backing Map
    private static final Object PRESENT = new Object();

    /**

                log.error("Failed to update pre-auth integrity hash", e);
                // Reset hash on error to maintain integrity
                resetPreauthHash();
                throw new CIFSException("Pre-authentication integrity hash update failed", e);
            }
        }
    }

    /**
     * Reset the pre-authentication integrity hash to initial state.

    /** The conditions. */
    public Map<String, String[]> as = new HashMap<>();

    /** The extra queries. */
    public String[] ex_q;

    /** The similar document hash. */
    public String sdh;

    @Override
    public String getQuery() {
        return q;
    }

    @Override
    public String[] getExtraQueries() {