* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

package jcifs.smb;

import java.io.IOException;
import java.net.MalformedURLException;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import jcifs.CIFSContext;
import jcifs.CIFSException;
import jcifs.SmbConstants;
import jcifs.SmbFileHandle;
import jcifs.SmbRandomAccess;

import org.bouncycastle.crypto.modes.CCMBlockCipher;
import org.bouncycastle.crypto.params.AEADParameters;
import org.bouncycastle.crypto.params.KeyParameter;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import jcifs.CIFSException;
import jcifs.DialectVersion;
import jcifs.internal.smb2.nego.EncryptionNegotiateContext;
import jcifs.util.SecureKeyManager;

/**

import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import jcifs.CIFSContext;
import jcifs.Configuration;
import jcifs.NameServiceClient;
import jcifs.NetbiosAddress;
import jcifs.ResolverType;
import jcifs.RuntimeCIFSException;

 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
package jcifs.internal.smb2.nego;

import java.util.Date;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import jcifs.CIFSContext;
import jcifs.Configuration;
import jcifs.DialectVersion;
import jcifs.internal.CommonServerMessageBlock;
import jcifs.internal.SMBProtocolDecodingException;

import java.util.GregorianCalendar;
import java.util.LinkedList;
import java.util.ListIterator;
import java.util.Properties;

import org.bouncycastle.util.encoders.Base64;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import jakarta.servlet.ServletException;
import jakarta.servlet.ServletOutputStream;
import jakarta.servlet.http.HttpServlet;
import jakarta.servlet.http.HttpServletRequest;

 */
package jcifs.smb;

import java.net.MalformedURLException;
import java.net.URL;
import java.net.UnknownHostException;
import java.util.Objects;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import jcifs.Address;
import jcifs.CIFSContext;
import jcifs.CIFSException;
import jcifs.DfsReferralData;
import jcifs.NetbiosAddress;
import jcifs.RuntimeCIFSException;

 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
package jcifs.internal.smb2.create;

import java.nio.charset.StandardCharsets;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import jcifs.CIFSContext;
import jcifs.Configuration;
import jcifs.internal.RequestWithPath;
import jcifs.internal.smb2.ServerMessageBlock2Request;
import jcifs.internal.smb2.Smb2Constants;

import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
import java.util.concurrent.locks.ReadWriteLock;
import java.util.concurrent.locks.ReentrantReadWriteLock;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import jcifs.CIFSContext;
import jcifs.smb.SmbFile;

/**
 * SMB2/SMB3 Lease Manager
 *
 * Manages lease state for SMB2/SMB3 connections
 */
public class LeaseManager {

import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicInteger;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import jcifs.CIFSContext;
import jcifs.Configuration;
import jcifs.SmbSession;
import jcifs.SmbTransport;
import jcifs.internal.CommonServerMessageBlock;

import java.util.concurrent.atomic.AtomicInteger;
import java.util.concurrent.atomic.AtomicLong;
import java.util.concurrent.atomic.AtomicReference;
import java.util.function.Supplier;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import jcifs.CIFSException;

/**
 * Circuit breaker pattern implementation for SMB operations.
 * Prevents cascading failures by temporarily blocking requests to a failing service.
 *