concreteImplementation = createInitializedDfsReferralDataImpl();
    }

    private DfsReferralDataImpl createInitializedDfsReferralDataImpl() {
        // Create a properly initialized instance using combine method
        DfsReferralDataImpl base = new DfsReferralDataImpl();
        DfsReferralData mockData = mock(DfsReferralData.class);
        when(mockData.getServer()).thenReturn("SERVER");

 * This form handles the editing of crawling session data, which tracks
 * the status and metadata of web crawling operations.
 *
 */
public class EditForm {

    /**
     * Creates a new EditForm instance.
     */
    public EditForm() {
        // Default constructor
    }

    /**
     * The CRUD operation mode for this form.
     * Indicates whether this is a create, read, update, or delete operation.

 * Provides functionality to retrieve and display cached versions of crawled documents.
 */
public class CacheAction extends FessSearchAction {

    /**
     * Creates a new instance of CacheAction.
     */
    public CacheAction() {
        super();
    }

    // ===================================================================================

 * for Fess plugins, including support for plugin JAR files in the WEB-INF/plugin directory.
 */
public class FessWebResourceRoot extends StandardRoot {
    /** Logger instance for this class */
    private static final Logger logger = Logger.getLogger(FessWebResourceRoot.class.getName());

    /**
     * Constructs a new FessWebResourceRoot with the specified context.
     *

specific language governing permissions and limitations
under the License.
-->
<component xmlns="http://maven.apache.org/ASSEMBLY-COMPONENT/2.1.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/ASSEMBLY-COMPONENT/2.1.0 http://maven.apache.org/xsd/assembly-component-2.1.0.xsd">
  <dependencySets>
    <dependencySet>
      <useProjectArtifact>false</useProjectArtifact>

     */
    int invoke(@Nonnull InvokerRequest invokerRequest) throws InvokerException;

    /**
     * Closes and disposes of this {@link Invoker} instance, releasing any resources it may hold.
     * This method is called automatically when using try-with-resources statements.
     *
     * <p>The default implementation does nothing. Subclasses should override this method

Actually, `Query`, `Path` and others you'll see next create objects of subclasses of a common `Param` class, which is itself a subclass of Pydantic's `FieldInfo` class.

And Pydantic's `Field` returns an instance of `FieldInfo` as well.

`Body` also returns objects of a subclass of `FieldInfo` directly. And there are others you will see later that are subclasses of the `Body` class.

    /** The data as a byte array. */
    protected byte[] data;

    /** The encoding used for the access result data. */
    protected String encoding;

    /**
     * Constructs a new AccessResultDataImpl instance.
     */
    public AccessResultDataImpl() {
        // NOP
    }

    @Override
    public IDTYPE getId() {
        return id;
    }

    /*
     * (non-Javadoc)
     *

/**
 * OpenSearchUrlQueue is an implementation of {@link UrlQueue} for OpenSearch.
 */
public class OpenSearchUrlQueue extends UrlQueueImpl<String> implements ToXContent {

    /**
     * Creates a new instance of OpenSearchUrlQueue.
     */
    public OpenSearchUrlQueue() {
        // NOP
    }

    /**
     * Field name for ID.
     */
    public static final String ID = "id";

    /**

 * This form handles the creation of stemmer override rules that modify
 * the stemming behavior for specific words.
 *
 */
public class CreateForm {

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

    /** The dictionary ID to which this stemmer override entry belongs */
    @Required
    public String dictId;