String getAttribute(@Nonnull String name);

    @Nonnull
    List<XmlNode> getChildren();

    @Nullable
    XmlNode getChild(String name);

    @Nullable
    Object getInputLocation();

    default XmlNode merge(@Nullable XmlNode source) {
        return merge(source, (Boolean) null);
    }

    XmlNode merge(@Nullable XmlNode source, @Nullable Boolean childMergeOverride);

    /**

        return map(oldPlugins, plugin -> {
            XmlNode pluginConfiguration = plugin.getConfiguration();
            if (pluginConfiguration != null) {
                return plugin.withExecutions(map(
                        plugin.getExecutions(),
                        execution -> execution.withConfiguration(
                                XmlNode.merge(execution.getConfiguration(), pluginConfiguration))));
            } else {

    }

    @Override
    public int compareChildNodePointers(NodePointer pointer1, NodePointer pointer2) {
        XmlNode node1 = (XmlNode) pointer1.getBaseValue();
        XmlNode node2 = (XmlNode) pointer2.getBaseValue();
        if (node1 == node2) {
            return 0;
        }
        for (XmlNode child : node.getChildren()) {
            if (child == node1) {
                return -1;
            }

    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;

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 extensionDescriptor;
    }

    private List<String> parseStrings(XmlNode dom) {
        List<String> strings = null;

        if (dom != null) {
            strings = new ArrayList<>();

            for (XmlNode child : dom.getChildren()) {
                String string = child.getValue();
                if (string != null) {

import org.apache.maven.api.xml.XmlNode;
import org.codehaus.plexus.util.xml.Xpp3Dom;

/**
 * A node iterator for JXPath to support <code>Xpp3Dom</code>.
 *
 */
class Xpp3DomNodeIterator implements NodeIterator {

    private NodePointer parent;

    private NodeTest test;

    private XmlNode node;

    private List<XmlNode> children;

    private List<XmlNode> filteredChildren = new ArrayList<>();

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

        XmlNode defaultConfiguration = getMojoConfiguration(mojoDescriptor);

        if (object instanceof org.codehaus.plexus.util.xml.Xpp3Dom) {
            object = ((org.codehaus.plexus.util.xml.Xpp3Dom) object).getDom();
        }
        if (object instanceof XmlNode) {
            return new Xpp3DomNodePointer((XmlNode) object);
        }
        return null;
    }

    public NodePointer createNodePointer(NodePointer parent, QName name, Object object) {

                return plugin;
            }
        }

        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 -> new XmlNodeImpl(