if (plugin.getVersion() == null) {
                PluginVersionRequest request = new DefaultPluginVersionRequest(
                        plugin, session.getRepositorySession(), project.getRemotePluginRepositories());
                plugin.setVersion(pluginVersionResolver.resolve(request).getVersion());
            }
            versions.put(plugin.getKey(), plugin.getVersion());
        }

        plugin.setArtifactId("maven-it-plugin");
        plugin.setVersion("0.1");
        PluginDescriptor pluginDescriptor = pluginManager.loadPlugin(
                plugin, session.getCurrentProject().getRemotePluginRepositories(), session.getRepositorySession());
        assertNotNull(pluginDescriptor);
    }

    @Test
    void testMojoDescriptorRetrieval() throws Exception {
        MavenSession session = createMavenSession(null);

        setRepositorySession(session.getRepositorySession());

        MavenProject project = session.getCurrentProject();
        if (project != null) {
            setRepositories(project.getRemotePluginRepositories());
            setPom(project.getModel());
        }

        setPluginGroups(session.getPluginGroups());
    }

    @Override
    public String getPrefix() {
        return prefix;
    }

        setRepositorySession(session.getRepositorySession());

        MavenProject project = session.getCurrentProject();
        if (project != null) {
            setRepositories(project.getRemotePluginRepositories());
        }
    }

    /**
     * Creates a request for the specified plugin using the given repository session and plugin repositories.
     *

        logger.debug("Repositories (dependencies): " + currentProject.getRemoteProjectRepositories());
        logger.debug("Repositories (plugins)     : " + currentProject.getRemotePluginRepositories());

        for (ExecutionPlanItem mojoExecution : executionPlan) {
            debugMojoExecution(mojoExecution.getMojoExecution());
        }

        writer.accept("Repositories (dependencies): " + project.getRemoteProjectRepositories());
        writer.accept("Repositories (plugins):      " + project.getRemotePluginRepositories());

        Optional<BuildStep> planStep = plan.step(project, BuildStep.PLAN);
        if (planStep.isPresent() && planStep.get().status.get() == BuildStep.PLANNING) {

                    for (String goal : execution.getGoals()) {
                        MojoDescriptor mojoDescriptor = pluginManager.getMojoDescriptor(
                                plugin, goal, project.getRemotePluginRepositories(), session.getRepositorySession());

                        phase = mojoDescriptor.getPhase();
                        if (aliases.containsKey(phase)) {
                            phase = aliases.get(phase);