return extensionDescriptor;
    }

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

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

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

            }
        }

        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(),

        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() {

                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));
            }

 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.project.canonical;

import java.io.File;
import java.util.List;

import org.apache.maven.api.xml.XmlNode;
import org.apache.maven.model.Plugin;
import org.apache.maven.model.PluginExecution;
import org.apache.maven.project.AbstractMavenProjectTestCase;
import org.apache.maven.project.MavenProject;

import org.apache.commons.jxpath.ri.model.NodePointer;
import org.apache.maven.api.xml.XmlNode;

/**
 * An attribute iterator for JXPath to support <code>Xpp3Dom</code>.
 *
 */
class Xpp3DomAttributeIterator implements NodeIterator {

    private NodePointer parent;

    private XmlNode node;

    private List<Map.Entry<String, String>> attributes;

    private Map.Entry<String, String> attribute;

import org.apache.maven.api.plugin.descriptor.MojoDescriptor;
import org.apache.maven.api.plugin.descriptor.PluginDescriptor;
import org.apache.maven.api.plugin.descriptor.lifecycle.Lifecycle;
import org.apache.maven.api.xml.XmlNode;
import org.apache.maven.impl.DefaultNode;
import org.codehaus.plexus.util.xml.Xpp3Dom;
import org.eclipse.aether.graph.DependencyNode;

public class DefaultMojoExecution implements MojoExecution {

                }
            }
        }
        return null;
    }

    private static String mayGetChild(XmlNode node, String child) {
        XmlNode c = node.child(child);
        if (c != null) {
            return c.value();
        }
        return null;
    }

        Plugin plugin = model.getBuild().getPlugins().get(0);
        XmlNode node = plugin.getConfiguration();
        assertNotNull(node);
        assertEquals("http://maven.apache.org/POM/4.0.0", node.namespaceUri());
        assertEquals("m", node.prefix());
        assertEquals("configuration", node.name());
        assertEquals(1, node.children().size());
        XmlNode myConfig = node.children().get(0);