@Test
    void testJdk7ipv6() {
        ConnectException connEx = new ConnectException("Connection refused: connect");
        IOException ioEx = new IOException("Unable to establish loopback connection", connEx);
        MojoExecutionException mojoEx =
                new MojoExecutionException("Error executing Jetty: Unable to establish loopback connection", ioEx);

        ExceptionHandler exceptionHandler = new DefaultExceptionHandler();

        System.out.println();
        System.out.println("Parent SCM connection is: " + project0.getScm().getConnection());
        System.out.println("Child SCM connection is: " + project1.getScm().getConnection());
        System.out.println();
        System.out.println(
                "Parent SCM developer connection is: " + project0.getScm().getDeveloperConnection());
        System.out.println(

    private static final List<String> PROJECT_PREFIXES_4_0 = Collections.singletonList(PREFIX_PROJECT);

    private static final Collection<String> TRANSLATED_PATH_EXPRESSIONS;

    static {
        Collection<String> translatedPrefixes = new HashSet<>();

        // MNG-1927, MNG-2124, MNG-3355:
        // If the build section is present and the project directory is non-null, we should make

        Scm scm = model.getScm();
        if (scm != null) {
            builder.scm(Scm.newBuilder(scm)
                    .url(normalize(scm.getUrl()))
                    .connection(normalize(scm.getConnection()))
                    .developerConnection(normalize(scm.getDeveloperConnection()))
                    .build());
        }

        assertEquals("https://parent.url/viewvc/child", pom.getValue("scm/url"));
        assertEquals("https://parent.url/scm/child", pom.getValue("scm/connection"));
        assertEquals("https://parent.url/scm/child", pom.getValue("scm/developerConnection"));
        assertEquals("https://parent.url/issues", pom.getValue("issueManagement/url"));

    @Override
    protected void mergeScm_Connection(
            Scm.Builder builder, Scm target, Scm source, boolean sourceDominant, Map<Object, Object> context) {
        String src = source.getConnection();
        if (src != null) {
            if (sourceDominant) {
                builder.connection(src);
                builder.location("connection", source.getLocation("connection"));

     */
    void unregisterListener(@Nonnull Listener listener);

    /**
     * Returns the list of registered listeners.
     *
     * @return an immutable collection of listeners, never {@code null}
     */
    @Nonnull
    Collection<Listener> getListeners();

    /**
     * Shortcut for {@code getService(RepositoryFactory.class).createLocal(...)}.
     *

import javax.inject.Inject;
import javax.inject.Named;
import javax.inject.Singleton;

import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;

import org.apache.maven.RepositoryUtils;

     * @since 3.5.0
     * @deprecated Use {@link #DefaultProjectDependencyGraph(Collection, Collection)} instead.
     */
    @Deprecated
    public DefaultProjectDependencyGraph(List<MavenProject> allProjects, Collection<MavenProject> projects)
            throws CycleDetectedException, DuplicateProjectException {
        this((Collection<MavenProject>) allProjects, projects);
    }

    /**

import javax.inject.Singleton;

import java.util.Collection;
import java.util.List;

import org.apache.maven.api.*;
import org.apache.maven.api.annotations.Nonnull;
import org.apache.maven.api.services.*;
import org.eclipse.aether.DefaultRepositorySystemSession;
import org.eclipse.aether.RepositorySystemSession;
import org.eclipse.aether.collection.CollectRequest;
import org.eclipse.aether.collection.CollectResult;