<expressions>
  <expression>
    <syntax>project.distributionManagementArtifactRepository</syntax>
    <configuration>
      <![CDATA[
<distributionManagement>
  <!-- use the following if you're not using a snapshot version. -->
  <repository>
    <id>repo</id>
    <name>Repository Name</name>
    <url>scp://host/path/to/repo</url>
  </repository>

import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;

import org.apache.maven.api.Language;
import org.apache.maven.model.DependencyManagement;
import org.apache.maven.model.DistributionManagement;
import org.apache.maven.model.License;
import org.apache.maven.model.Model;
import org.apache.maven.model.Prerequisites;
import org.apache.maven.model.Repository;

        assertContains(result.getErrors().get(1), "'pluginRepositories.pluginRepository.id' must not be 'local'");
        assertContains(result.getErrors().get(2), "'distributionManagement.repository.id' must not be 'local'");
        assertContains(result.getErrors().get(3), "'distributionManagement.snapshotRepository.id' must not be 'local'");
    }

    @Test
    void testMissingPluginDependencyGroupId() throws Exception {

        expressions.add("project.scm.url");
        expressions.add("project.scm.connection");
        expressions.add("project.scm.developerConnection");
        expressions.add("project.distributionManagement.site.url");

        URL_EXPRESSIONS = expressions;
    }

    private UrlNormalizer normalizer;

    UrlNormalizingPostProcessor(UrlNormalizer normalizer) {
        this.normalizer = normalizer;
    }

  Notice that the 5 URLs from the model (<<<project.url>>>, <<<project.scm.connection>>>, <<<project.scm.developerConnection>>>,
  <<<project.scm.url>>> and <<<project.distributionManagement.site.url>>>) have a special inheritance handling:

  ** if not configured in current model, the inherited value is the parent's one with current artifact id appended,

import org.apache.maven.bridge.MavenRepositorySystem;
import org.apache.maven.execution.MavenSession;
import org.apache.maven.model.Dependency;
import org.apache.maven.model.DependencyManagement;
import org.apache.maven.model.DistributionManagement;
import org.apache.maven.model.Model;
import org.apache.maven.model.Relocation;
import org.apache.maven.model.Repository;
import org.apache.maven.model.building.ModelBuildingException;

          <artifactId>build-helper-maven-plugin</artifactId>
          <version>3.4.0</version>
        </plugin>
      </plugins>
    </pluginManagement>
  </build>
  <distributionManagement>
    <snapshotRepository>
      <id>sonatype-nexus-snapshots</id>
      <name>Sonatype Nexus Snapshots</name>
      <url>https://oss.sonatype.org/content/repositories/snapshots/</url>
    </snapshotRepository>

          <artifactId>build-helper-maven-plugin</artifactId>
          <version>3.4.0</version>
        </plugin>
      </plugins>
    </pluginManagement>
  </build>
  <distributionManagement>
    <snapshotRepository>
      <id>sonatype-nexus-snapshots</id>
      <name>Sonatype Nexus Snapshots</name>
      <url>https://oss.sonatype.org/content/repositories/snapshots/</url>
    </snapshotRepository>

            }

            DistributionManagement distMgmt = m.getDistributionManagement();
            if (distMgmt != null) {
                if (distMgmt.getStatus() != null) {
                    addViolation(
                            problems,
                            Severity.ERROR,
                            Version.V20,
                            "distributionManagement.status",
                            null,

        <field xdoc.separator="blank">
          <name>distributionManagement</name>
          <version>4.0.0+</version>
          <description>Distribution information for a project that enables deployment of the site
            and artifacts to remote web servers and repositories respectively.</description>
          <association>
            <type>DistributionManagement</type>
          </association>
        </field>