Object configuration = request.getConfiguration();
        if (configuration == null) {
            return;
        }

        PlexusConfiguration plexusConfig;
        if (configuration instanceof PlexusConfiguration plexusConfiguration) {
            plexusConfig = plexusConfiguration;
        } else if (configuration instanceof Xpp3Dom xpp3Dom) {
            plexusConfig = new XmlPlexusConfiguration(xpp3Dom);
        } else {

import org.codehaus.plexus.component.configurator.expression.ExpressionEvaluator;
import org.codehaus.plexus.component.configurator.expression.TypeAwareExpressionEvaluator;
import org.codehaus.plexus.configuration.PlexusConfiguration;

/**
 * An enhanced {@link ObjectWithFieldsConverter} leveraging the {@link TypeAwareExpressionEvaluator}
 * interface.
 */
class EnhancedConfigurationConverter extends ObjectWithFieldsConverter {

import org.codehaus.plexus.component.configurator.converters.special.ClassRealmConverter;
import org.codehaus.plexus.component.configurator.expression.ExpressionEvaluator;
import org.codehaus.plexus.configuration.PlexusConfiguration;

/**
 * A component configurator which can leverage the {@link EnhancedConfigurationConverter}
 * and {@link EnhancedConverterLookup}.
 */
@Singleton
@Named("enhanced")

run. In the MojoDescriptor we are interested in the <configuration/> element and <parameters/> element. From these elements we need to make a component configuration for the MojoExecution. The actual DOM like structure we create is of type PlexusConfiguration and is the type we use with the ComponentConfigurator to initialize fields in a Plexus component. Typically this is done within Plexus with the configuration supplied with component configuration, but in Maven we take configuration values from...

import java.io.InputStream;

import org.codehaus.plexus.component.repository.ComponentDependency;
import org.codehaus.plexus.component.repository.ComponentRequirement;
import org.codehaus.plexus.configuration.PlexusConfiguration;
import org.codehaus.plexus.configuration.PlexusConfigurationException;
import org.junit.jupiter.api.Test;

import static org.junit.jupiter.api.Assertions.assertEquals;

import org.apache.maven.impl.model.DefaultInterpolator;
import org.apache.maven.internal.xml.XmlPlexusConfiguration;
import org.apache.maven.model.v4.MavenTransformer;
import org.codehaus.plexus.configuration.PlexusConfiguration;

@Deprecated
public class ExtensionConfigurationModule implements Module {

    private final CoreExtensionEntry extension;
    private final UnaryOperator<String> callback;

import org.apache.maven.impl.model.DefaultInterpolator;
import org.apache.maven.internal.xml.XmlPlexusConfiguration;
import org.apache.maven.model.v4.MavenTransformer;
import org.codehaus.plexus.configuration.PlexusConfiguration;

public class ExtensionConfigurationModule implements Module {

    private final CoreExtensionEntry extension;
    private final UnaryOperator<String> callback;