protected Cache<String, List<String>> cache;

    /** Fess configuration instance */
    protected FessConfig fessConfig;

    /**
     * Default constructor.
     */
    public PopularWordHelper() {
        // Default constructor
    }

    /**
     * Initializes the PopularWordHelper after dependency injection.
     * Sets up the cache with configured size and expiration settings.
     */

    protected DependencyTraverser getDependencyTraverser() {
        return new FatArtifactTraverser();
    }

    protected DependencyManager getDependencyManager() {
        return getDependencyManager(true); // same default as in Maven4
    }

    public DependencyManager getDependencyManager(boolean transitive) {
        return transitive
                ? new TransitiveDependencyManager(getScopeManager())

/**
 * Validator implementation for the CronExpression constraint.
 */
public class CronExpressionValidator implements ConstraintValidator<CronExpression, String> {

    /**
     * Default constructor.
     */
    public CronExpressionValidator() {
        // Empty constructor
    }

    @Override
    public void initialize(final CronExpression constraintAnnotation) {
    }

    @Override

import javax.inject.Named;
import javax.inject.Singleton;

import java.util.List;

import org.apache.maven.execution.MavenSession;
import org.apache.maven.lifecycle.LifecycleExecutionException;

/**
 * Default mojo execution strategy. It just iterates over mojo executions and runs one by one
 */
@Named
@Singleton
public class DefaultMojosExecutionStrategy implements MojosExecutionStrategy {
    @Override

For example, you can create a subclass of `HTTPBearer` that returns a `403 Forbidden` error instead of the default `401 Unauthorized` error:

{* ../../docs_src/authentication_error_status_code/tutorial001_an_py39.py hl[9:13] *}

/// tip

/**
 *
 * @since 3.3.0
 * @deprecated since 4.0.0, use {@link org.apache.maven.api.services} instead
 */
@Deprecated(since = "4.0.0")
public class ProblemCollectorFactory {

    /**
     * The default implementation is not visible, create it with this factory
     *
     * @param problems starting set of problems, may be {@code null}
     * @return a new instance of a ProblemCollector
     */

Sie können beispielsweise eine Unterklasse von `HTTPBearer` erstellen, die einen Fehler `403 Forbidden` zurückgibt, statt des Default-`401 Unauthorized`-Fehlers:

{* ../../docs_src/authentication_error_status_code/tutorial001_an_py39.py hl[9:13] *}

/// tip | Tipp

import jakarta.annotation.Resource;

/**
 * Admin action for Group management.
 *
 */
public class AdminGroupAction extends FessAdminAction {

    /**
     * Default constructor.
     */
    public AdminGroupAction() {
        super();
    }

    /** The role name for group administration. */
    public static final String ROLE = "admin-group";

///

## Sobrescreva os manipuladores de exceções padrão { #override-the-default-exception-handlers }

**FastAPI** tem alguns manipuladores padrão de exceções.

        // Get relativePath (default is "../pom.xml" if not specified)
        String relativePath = parentElement.childText(MavenPomElements.Elements.RELATIVE_PATH);
        if (relativePath == null || relativePath.trim().isEmpty()) {
            relativePath = DEFAULT_PARENT_RELATIVE_PATH; // Maven default
        }

        // Only infer artifactId if relativePath is the default and we have multiple POMs