*
     * @deprecated use {@link XmlService#merge(XmlNode, XmlNode, Boolean)} instead
     */
    @Deprecated(since = "4.0.0", forRemoval = true)
    @Nullable
    static XmlNode merge(@Nullable XmlNode dominant, @Nullable XmlNode recessive) {
        return XmlService.merge(dominant, recessive, null);
    }

    @Nullable
    static XmlNode merge(

     */
    @Nullable
    public static XmlNode merge(XmlNode dominant, XmlNode recessive) {
        return merge(dominant, recessive, null);
    }

    /**
     * Merges two XML nodes.
     */
    @Nullable
    public static XmlNode merge(
            @Nullable XmlNode dominant, @Nullable XmlNode recessive, @Nullable Boolean childMergeOverride) {

        this.callback = callback;
    }

    @Override
    public void configure(Binder binder) {
        if (extension.getKey() != null) {
            XmlNode configuration = extension.getConfiguration();
            if (configuration == null) {
                configuration = XmlNode.newInstance("configuration");
            }
            UnaryOperator<String> cb = Interpolator.memoize(callback);

        this.callback = callback;
    }

    @Override
    public void configure(Binder binder) {
        if (extension.getKey() != null) {
            XmlNode configuration = extension.getConfiguration();
            if (configuration == null) {
                configuration = XmlNode.newInstance("configuration");
            }
            UnaryOperator<String> cb = Interpolator.memoize(callback);

    private final Set<String> packages;

    private final String key;

    private final XmlNode configuration;

    public CoreExtensionEntry(
            ClassRealm realm,
            Collection<String> artifacts,
            Collection<String> packages,
            String key,
            XmlNode configuration) {
        this.realm = realm;

            XmlNode pomConfiguration = null;

            if (pluginExecution != null) {
                pomConfiguration = pluginExecution.getDelegate().getConfiguration();
            } else if (allowPluginLevelConfig) {
                pomConfiguration = plugin.getDelegate().getConfiguration();
            }

            XmlNode mojoConfiguration = mojoExecution.getConfiguration() != null

                throw new ComponentConfigurationException("Unable to convert configuration to xml node", e);
            }
        }

        XmlNode toXml(PlexusConfiguration config, ExpressionEvaluator evaluator) throws ExpressionEvaluationException {
            List<XmlNode> children = new ArrayList<>();
            for (PlexusConfiguration c : config.getChildren()) {
                children.add(toXml(c, evaluator));
            }

        XmlNode executionConfiguration = mojoExecution.getConfiguration() != null
                ? mojoExecution.getConfiguration().getDom()
                : null;
        if (executionConfiguration == null) {
            executionConfiguration = XmlNode.newInstance("configuration");
        }

        XmlNode defaultConfiguration = getMojoConfiguration(mojoDescriptor);

package org.apache.maven.lifecycle.mapping;

import java.util.List;

import org.apache.maven.api.xml.XmlNode;
import org.apache.maven.model.Dependency;

/**
 * Mojo (plugin goal) binding to a lifecycle phase.
 *
 * @see LifecyclePhase
 */
public class LifecycleMojo {

    private String goal;
    private XmlNode configuration;
    private List<Dependency> dependencies;

    public String getGoal() {

            }
        }

        return null;
    }

    public static XmlNode convert(org.apache.maven.api.plugin.descriptor.MojoDescriptor mojoDescriptor) {
        List<XmlNode> children = mojoDescriptor.getParameters().stream()
                .filter(p -> p.getDefaultValue() != null || p.getExpression() != null)
                .map(p -> XmlNode.newInstance(
                        p.getName(),
                        p.getExpression(),