if (!unversionedPlugins.isEmpty()) {
            logger.warn("Version not locked for default bindings plugins " + unversionedPlugins
                    + ", you should define versions in pluginManagement section of your " + "pom.xml or parent");
        }

        return executionPlan;
    }

    public void handleBuildError(
            final ReactorContext buildContext,

    <developerConnection>scm:svn:https://svn.apache.org/repos/asf/maven/components/trunk</developerConnection>
    <url>http://svn.apache.org/viewcvs.cgi/maven/components/trunk</url>
  </scm>
  <build>
    <pluginManagement>
      <plugins>
        <plugin>
          <groupId>org.codehaus.plexus</groupId>
          <artifactId>plexus-component-metadata</artifactId>
          <version>${plexusVersion}</version>

            boolean sourceDominant,
            Map<Object, Object> context) {
        PluginManagement src = source.getPluginManagement();
        if (src != null) {
            PluginManagement tgt = target.getPluginManagement();
            if (tgt == null) {
                tgt = new PluginManagement();
                target.setPluginManagement(tgt);
            }

import org.apache.maven.model.InputSource;
import org.apache.maven.model.Model;
import org.apache.maven.model.Parent;
import org.apache.maven.model.Plugin;
import org.apache.maven.model.PluginManagement;
import org.apache.maven.model.Profile;
import org.apache.maven.model.Repository;
import org.apache.maven.model.building.ModelProblem.Severity;
import org.apache.maven.model.building.ModelProblem.Version;

    }

    /* MNG-3567*/
    @Test
    void testPluginManagementInherited() throws Exception {
        PomTestWrapper pom = buildPom("pluginmanagement-inherited/sub");
        assertEquals("1.0-alpha-21", pom.getValue("build/plugins[1]/version"));
    }

    /* MNG-2174*/
    @Test
    void testPluginManagementDependencies() throws Exception {

 *   <li><strong>maven-remote-resources-plugin</strong>: Upgrades to version 3.0.0 or higher</li>
 * </ul>
 * Plugin versions are upgraded in both {@code <build><plugins>} and {@code <build><pluginManagement><plugins>} sections.
 * If a plugin version is defined via a property, the property value is updated instead.
 *
 * <h3>Inference Optimizations (Optional)</h3>

        if (pluginsElement != null) {
            upgrades += upgradePhaseElementsInPlugins(pluginsElement, phaseUpgrades, context);
        }

        // Check pluginManagement section
        Element pluginManagementElement = buildElement.child(PLUGIN_MANAGEMENT).orElse(null);
        if (pluginManagementElement != null) {
            Element managedPluginsElement =

            this.element = element;
            this.sectionName = sectionName;
        }
    }

    /**
     * Fixes duplicate plugins in plugins and pluginManagement sections.
     */
    private boolean fixDuplicatePlugins(Document pomDocument, UpgradeContext context) {
        Element root = pomDocument.root();

        // Collect all build elements to process

            return getModel().getDelegate().getSubprojects();
        }
        return getModel().getModules();
    }

    public PluginManagement getPluginManagement() {
        PluginManagement pluginMgmt = null;

        Build build = getModel().getBuild();
        if (build != null) {
            pluginMgmt = build.getPluginManagement();
        }

            if (!unversionedPlugins.isEmpty()) {
                logger.warn("Version not locked for default bindings plugins " + unversionedPlugins
                        + ", you should define versions in pluginManagement section of your " + "pom.xml or parent");
            }
        }

        private void checkThreadSafety(BuildPlan buildPlan) {
            if (threads > 1) {