final ChatSession session = findSession(sessionId);
            if (session != null) {
                final String sessionUserId = session.getUserId();
                // Validate userId matches - prevent cross-user session access
                if (userId != null && !userId.equals(sessionUserId)) {
                    logger.warn("Session userId mismatch. sessionId={}, requestUserId={}", sessionId, userId);

        if (!destroyed) {
            boolean failedToDestroy = false;
            Exception destroyException = null;

            try {
                // Mark as destroyed first to prevent further operations
                destroyed = true;

                // Try to destroy master key if it implements Destroyable
                if (masterKey instanceof Destroyable) {
                    try {

 * Tests all SMB2 protocol constants and their expected values
 */
@DisplayName("Smb2Constants Test Suite")
class Smb2ConstantsTest {

    @Test
    @DisplayName("Should have private constructor to prevent instantiation")
    void testPrivateConstructor() throws Exception {
        // Verify constructor is private
        Constructor<Smb2Constants> constructor = Smb2Constants.class.getDeclaredConstructor();

 * {@link jcifs.context.SingletonContext#getInstance()}
 * witch is initialized using system properties.
 *
 */
public class Config {

    /**
     * Private constructor to prevent instantiation of this utility class.
     */
    private Config() {
        // Utility class - not instantiable
    }

    private static final Logger log = LoggerFactory.getLogger(Config.class);

    /**

 *
 * See [RFC 7234, 5.2](https://tools.ietf.org/html/rfc7234#section-5.2).
 */
class CacheControl internal constructor(
  /**
   * In a response, this field's name "no-cache" is misleading. It doesn't prevent us from caching
   * the response; it only means we have to validate the response with the origin server before
   * returning it. We can do this with a conditional GET.
   *

   *
   * @return a validated port number, in the range [0..65535]
   * @throws IllegalStateException if no port is defined. You can use {@link #withDefaultPort(int)}
   *     to prevent this from occurring.
   */
  public int getPort() {
    checkState(hasPort());
    return port;
  }

  /** Returns the current port number, with a default if no port is defined. */

            // Could attempt re-registration here
        }
    }

    /**
     * Handle a witness event
     *
     * @param notification the witness notification
     */
    private void handleWitnessEvent(WitnessNotification notification) {
        log.info("Handling witness event: {} for resource: {}", notification.getEventType(), notification.getResourceName());

                                concurrentLimiter.recordFailure("user" + threadId, "192.168.2." + threadId);
                                localFailures++;
                                // Prevent lockout by resetting after 3 failures
                                if (localFailures >= 3) {
                                    concurrentLimiter.recordSuccess("user" + threadId, "192.168.2." + threadId);

	xioutil "github.com/minio/minio/internal/ioutil"
	"github.com/minio/pkg/v3/mimedb"
	"github.com/pkg/sftp"
	"golang.org/x/crypto/ssh"
)

// Maximum write offset for incoming SFTP blocks.
// Set to 100MiB to prevent hostile DOS attacks.
const ftpMaxWriteOffset = 100 << 20

type sftpDriver struct {
	permissions *ssh.Permissions
	endpoint    string
	remoteIP    string
}

//msgp:ignore sftpMetrics

    /** Constant value representing Docker application type */
    private static final String FESS_APP_DOCKER = "docker";

    /**
     * Protected constructor to prevent instantiation of this utility class.
     * This class is designed to be used statically.
     */
    protected ResourceUtil() {
        // nothing
    }

    /**