pluginDescriptor = pluginManager.getPluginDescriptor(
                    plugin, session.getCurrentProject().getRemotePluginRepositories(), session.getRepositorySession());

            pluginManager.setupPluginRealm(pluginDescriptor, session, null, null, null);
        } catch (Exception e) {
            throw new PluginManagerException(plugin, e.getMessage(), e);
        }

     * @param imports The packages/types to import from the parent realm, may be {@code null}.
     * @param filter The filter used to exclude certain plugin dependencies, may be {@code null}.
     */
    void setupPluginRealm(
            PluginDescriptor pluginDescriptor,
            MavenSession session,
            ClassLoader parent,
            List<String> imports,
            DependencyFilter filter)

        ClassRealm pluginRealm = pluginDescriptor.getClassRealm();
        if (pluginRealm != null) {
            return pluginRealm;
        }

        mavenPluginManager.setupPluginRealm(pluginDescriptor, session, null, null, null);

        return pluginDescriptor.getClassRealm();
    }

    @Override
    public MojoDescriptor getMojoDescriptor(

    public void checkRequiredMavenVersion(PluginDescriptor pluginDescriptor) throws PluginIncompatibleException {
        checkPrerequisites(pluginDescriptor);
    }

    @Override
    public void setupPluginRealm(
            PluginDescriptor pluginDescriptor,
            MavenSession session,
            ClassLoader parent,
            List<String> imports,
            DependencyFilter filter)