void removeChild(int); public Xpp3Dom getParent(); public void setParent(Xpp3Dom); public void writeToSerializer(String, pull.XmlSerializer) throws java.io.IOException; private static void mergeIntoXpp3Dom(Xpp3Dom, Xpp3Dom, Boolean); public static Xpp3Dom mergeXpp3Dom(Xpp3Dom, Xpp3Dom, Boolean); public static Xpp3Dom mergeXpp3Dom(Xpp3Dom, Xpp3Dom); public boolean equals(Object); public int hashCode(); public String toString(); public String toUnescapedString(); static void <clinit>(); } org/code...

        configurator = new DefaultBeanConfigurator();
    }

    @AfterEach
    void tearDown() throws Exception {
        configurator = null;
    }

    private Xpp3Dom toConfig(String xml) {
        try {
            return new Xpp3Dom(XmlService.read(new StringReader("<configuration>" + xml + "</configuration>")));
        } catch (XMLStreamException e) {
            throw new IllegalArgumentException(e);
        }
    }

 * <a href="https://codehaus-plexus.github.io/plexus-utils/apidocs/org/codehaus/plexus/util/xml/Xpp3DomBuilder.html">Xpp3DomBuilder</a> +
 * <a href="https://codehaus-plexus.github.io/plexus-utils/apidocs/org/codehaus/plexus/util/xml/Xpp3Dom.html">Xpp3Dom</a> for
 * DOM content representation (see <code>&lt;configuration&gt;</code> elements).
 */

        Properties props = new Properties();
        props.put("key", "${env.testKey}");
        Xpp3Dom configurationChild = new Xpp3Dom("jdkHome");
        configurationChild.setValue("${env.testKey}");
        Xpp3Dom configuration = new Xpp3Dom("configuration");
        configuration.addChild(configurationChild);
        ToolchainModel toolchain = new ToolchainModel();

        assertNotNull(result);
        assertNotNull(result.getEffectiveModel());
        assertEquals("activated", result.getEffectiveModel().getProperties().get("profile.file"));
        Xpp3Dom conf = (Xpp3Dom)
                result.getEffectiveModel().getBuild().getPlugins().get(0).getConfiguration();
        assertNotNull(conf);
        assertEquals("1.5", conf.getChild("source").getValue());

    public org.codehaus.plexus.util.xml.Xpp3Dom getConfiguration() {
        return configuration;
    }

    public void setConfiguration(org.codehaus.plexus.util.xml.Xpp3Dom configuration) {
        this.configuration = configuration;
    }

    public void setConfiguration(XmlNode configuration) {
        this.configuration = configuration != null ? new org.codehaus.plexus.util.xml.Xpp3Dom(configuration) : null;
    }

import org.apache.commons.jxpath.ri.model.NodeIterator;
import org.apache.commons.jxpath.ri.model.NodePointer;
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;

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 {
    private final InternalMavenSession session;
    private final org.apache.maven.plugin.MojoExecution delegate;

import org.apache.maven.plugin.descriptor.MojoDescriptor;
import org.apache.maven.plugin.descriptor.Parameter;
import org.apache.maven.project.MavenProject;
import org.codehaus.plexus.util.xml.Xpp3Dom;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import static java.util.Arrays.stream;
import static java.util.Objects.requireNonNull;

/**
 * @since 3.3.1, MNG-5753
 */
@Named
@Singleton

        if (configuration instanceof PlexusConfiguration plexusConfiguration) {
            plexusConfig = plexusConfiguration;
        } else if (configuration instanceof Xpp3Dom xpp3Dom) {
            plexusConfig = new XmlPlexusConfiguration(xpp3Dom);
        } else {
            throw new BeanConfigurationException("unsupported bean configuration source ("
                    + configuration.getClass().getName() + ")");
        }