public static final String API_V4_REALMID = "maven.api.v4";

    /**
     * During normal command line build, ClassWorld is loaded by jvm system classloader, which only includes
     * plexus-classworlds jar and possibly javaagent classes, see https://issues.apache.org/jira/browse/MNG-4747.
     * <p>
     * Using ClassWorld to determine plugin/extensions realm parent classloaders gives m2e and integration test harness

    private final RepositorySystemSessionFactory repositorySystemSessionFactory;

    private final CoreExports coreExports;

    private final ClassWorld classWorld;

    private final ClassRealm parentRealm;

    private final WorkspaceReader ideWorkspaceReader;

    private final RepositorySystem repoSystem;

    @Inject

    private final RepositorySystemSessionFactory repositorySystemSessionFactory;

    private final CoreExports coreExports;

    private final ClassWorld classWorld;

    private final ClassRealm parentRealm;

    private final WorkspaceReader ideWorkspaceReader;

    private final RepositorySystem repoSystem;

    private final Interpolator interpolator;

import java.nio.charset.StandardCharsets;

import org.apache.commons.cli.ParseException;
import org.apache.maven.api.cli.mvnup.UpgradeOptions;
import org.apache.maven.cling.MavenUpCling;
import org.codehaus.plexus.classworlds.ClassWorld;
import org.junit.jupiter.api.Test;

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertNotNull;