/**
 * Provides static methods for serializing collection classes.
 *
 * <p>This class assists the implementation of collection classes. Do not use this class to
 * serialize collections that are defined elsewhere.
 *
 * @author Jared Levy
 */
@GwtIncompatible
@J2ktIncompatible
final class Serialization {
  private Serialization() {}

  /**

import org.codelibs.fess.util.ComponentUtil;

/**
 * Pager for data configuration management with standard paging functionality.
 * This class provides pagination support for data configuration listings in the admin interface,
 * including navigation controls and search/filter parameters.
 */
public class DataConfigPager implements Serializable {

    private static final long serialVersionUID = 1L;

    /** Default page size for pagination. */

import java.util.concurrent.atomic.AtomicInteger;

/**
 * Abstract base class for RDMA connections.
 *
 * Manages connection state, credit flow control, and provides
 * abstract methods for RDMA operations that must be implemented
 * by specific provider implementations.
 */
public abstract class RdmaConnection implements AutoCloseable {

    /**
     * RDMA connection state enumeration
     */

import java.util.Map;

import org.codelibs.core.lang.StringUtil;
import org.codelibs.fess.crawler.entity.AccessResultDataImpl;
import org.dbflute.utflute.core.PlainTestCase;

/**
 * Test class for XmlUtil.
 *
 * @author shinsuke
 */
public class XmlUtilTest extends PlainTestCase {

    public void test_escapeXml_null() {
        // Test null input
        assertEquals(StringUtil.EMPTY, XmlUtil.escapeXml(null));
    }

## Guía oficial { #official-guide }

Pydantic tiene una <a href="https://docs.pydantic.dev/latest/migration/" class="external-link" target="_blank">Guía de migración</a> oficial de v1 a v2.

También incluye qué cambió, cómo las validaciones ahora son más correctas y estrictas, posibles consideraciones, etc.

**FastAPI CLI** 是一个命令行程序，你可以用它来部署和运行你的 FastAPI 应用程序，管理你的 FastAPI 项目，等等。

当你安装 FastAPI 时（例如使用 `pip install FastAPI` 命令），会包含一个名为 `fastapi-cli` 的软件包，该软件包在终端中提供 `fastapi` 命令。

要在开发环境中运行你的 FastAPI 应用，你可以使用 `fastapi dev` 命令：

<div class="termy">

```console
$ <font color="#4E9A06">fastapi</font> dev <u style="text-decoration-style:solid">main.py</u>

各个章节的内容循序渐进，但是又围绕着单独的主题，所以您可以直接跳转到某个章节以解决您的特定需求。

本教程同样可以作为将来的参考手册，所以您可以随时回到本教程并查阅您需要的内容。

## 运行代码

所有代码片段都可以复制后直接使用（它们实际上是经过测试的 Python 文件）。

要运行任何示例，请将代码复制到 `main.py` 文件中，然后使用以下命令启动 `fastapi dev`：

<div class="termy">

```console
$ <font color="#4E9A06">fastapi</font> dev <u style="text-decoration-style:solid">main.py</u>

import jakarta.validation.constraints.Min;
import jakarta.validation.constraints.Size;

/**
 * Form class for creating new duplicate host configuration entries.
 * This form handles the creation of duplicate host mappings that redirect
 * crawling from duplicate hostnames to the regular canonical hostname.
 */
public class CreateForm {

    /**
     * Creates a new CreateForm instance.
     */
    public CreateForm() {
    }

import org.lastaflute.web.validation.Required;
import org.lastaflute.web.validation.theme.conversion.ValidateTypeFailure;

import jakarta.validation.constraints.Size;

/**
 * Form class for editing duplicate host configurations in the admin interface.
 * This form extends CreateForm to include fields necessary for updating existing duplicate host entries,

 *
 * <p>This class manages a collection of {@link SmbAuthentication} objects, each associated
 * with a specific path prefix. When a path is provided, it iterates through the stored
 * authentications to find the one whose path prefix matches the beginning of the given path.
 * This allows for different SMB shares to use different authentication credentials.</p>
 *
 */
public class SmbAuthenticationHolder {