### Phase 1: SMB3 Lease Implementation (Foundation)
**Priority: HIGH** | **Estimated Effort: 3-4 weeks**

SMB3 leases replace the traditional oplock mechanism and are foundational for other features.

#### 1.1 Core Lease Infrastructure
```
Package: jcifs.internal.smb2.lease
├── Smb2LeaseBreak.java          - Lease break notification handling
├── Smb2LeaseContext.java        - Lease context for create requests

 * governing permissions and limitations under the License.
 */
package org.codelibs.core.net;

import junit.framework.TestCase;

/**
 * @author higa
 *
 */
public class UuidUtilTest extends TestCase {

    /**
     * Test method for {@link org.codelibs.core.net.UuidUtil#create()}.
     */
    public void testCreate() {
        final String uuid = UuidUtil.create();

 */
package org.codelibs.core.nio;

import static org.codelibs.core.misc.AssertionUtil.assertArgumentNotNull;

import java.io.IOException;
import java.nio.ByteBuffer;
import java.nio.channels.Channel;
import java.nio.channels.FileChannel;
import java.nio.channels.FileChannel.MapMode;

import org.codelibs.core.exception.IORuntimeException;

/**
 * Utility for {@link Channel}.
 *

![ReDoc](https://fastapi.tiangolo.com/img/index/index-02-redoc-simple.png)

## Exemple plus poussé

Maintenant, modifiez le fichier `main.py` pour recevoir <abbr title="en anglais : body">le corps</abbr> d'une requête `PUT`.

Déclarez ce corps en utilisant les types Python standards, grâce à Pydantic.

```Python hl_lines="4  9-12  25-27"
from typing import Union

from fastapi import FastAPI
from pydantic import BaseModel

-->
<super-source path="super"/>

<inherits name="com.google.common.annotations.Annotations" />
<inherits name="com.google.common.escape.Escape" />
<inherits name="com.google.gwt.core.Core" />
<inherits name="com.google.gwt.user.User" />

-->
<super-source path="super"/>

<inherits name="com.google.common.annotations.Annotations" />
<inherits name="com.google.common.base.Base" />
<inherits name="com.google.gwt.core.Core" />
<inherits name="com.google.gwt.user.User" />

<super-source path="super"/>

<inherits name="com.google.common.annotations.Annotations" />
<inherits name="com.google.common.base.Base" />
<inherits name="com.google.common.collect.Collect" />
<inherits name="com.google.gwt.core.Core" />
<inherits name="com.google.gwt.user.User" />

<super-source path="super"/>

<inherits name="com.google.common.annotations.Annotations" />
<inherits name="com.google.common.base.Base" />
<inherits name="com.google.common.escape.Escape" />
<inherits name="com.google.gwt.core.Core" />
<inherits name="com.google.gwt.user.User" />

 * governing permissions and limitations under the License.
 */
package org.codelibs.core.beans.factory;

import static org.hamcrest.CoreMatchers.is;
import static org.hamcrest.CoreMatchers.not;
import static org.hamcrest.CoreMatchers.sameInstance;
import static org.junit.Assert.assertThat;

import org.codelibs.core.beans.BeanDesc;
import org.junit.Test;

/**
 * @author higa
 */

 * either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */
package org.codelibs.core.convert;

import java.text.SimpleDateFormat;

import org.codelibs.core.lang.StringUtil;
import org.codelibs.core.text.DecimalFormatUtil;

/**
 * Utility class for conversions related to {@link Short}.
 *
 * @author higa
 */