mojoExecution.getMojoDescriptor().getPluginDescriptor().getGroupId());
        assertEquals(
                "maven-resources-plugin",
                mojoExecution.getMojoDescriptor().getPluginDescriptor().getArtifactId());
        assertEquals(
                "0.1", mojoExecution.getMojoDescriptor().getPluginDescriptor().getVersion());
    }

    @Test

 * <tr><td><code>plugin</code></td>            <td>(since Maven 3)</td>
 *                             <td>{@link MojoExecution#getMojoDescriptor()}.{@link MojoDescriptor#getPluginDescriptor()
 *                                 getPluginDescriptor()}</td></tr>
 * <tr><td><code>plugin.*</code></td>          <td></td>               <td></td></tr>
 * <tr><td><code>*</code></td>                 <td></td>               <td>user properties</td></tr>

            return Objects.equals(getPluginDescriptor(), other.getPluginDescriptor())
                    && Objects.equals(getGoal(), other.getGoal());
        }

        return false;
    }

    /** {@inheritDoc} */
    @Override
    public int hashCode() {
        return Objects.hash(getGoal(), getPluginDescriptor());
    }

    /**

        MavenSession session = legacySupport.getSession();

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

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

        Object result = new PluginParameterExpressionEvaluator(session, exec).evaluate("${plugin}");

        System.out.println("Result: " + result);

        assertSame(
                exec.getMojoDescriptor().getPluginDescriptor(),
                result,
                "${plugin} expression does not return plugin descriptor.");
    }

    @Test
    void testPluginArtifactsExpressionReference() throws Exception {

            }
            message += ": " + e.getMessage();

            throw new PluginConfigurationException(mojoDescriptor.getPluginDescriptor(), message, e);
        } catch (ComponentLookupException e) {
            throw new PluginConfigurationException(
                    mojoDescriptor.getPluginDescriptor(),
                    "Unable to retrieve component configurator " + configuratorId + " for configuration of mojo "

        return groupId + ":" + artifactId + ":" + version;
    }

    private String pluginKey(MojoDescriptor mojoDescriptor) {
        PluginDescriptor pd = mojoDescriptor.getPluginDescriptor();
        return pluginKey(pd.getGroupId(), pd.getArtifactId(), pd.getVersion());
    }

    private String pluginKey(Artifact pluginArtifact) {

                    InvalidPluginDescriptorException, PluginVersionResolutionException {
        MojoDescriptor mojoDescriptor = mojoExecution.getMojoDescriptor();

        PluginDescriptor pluginDescriptor = mojoDescriptor.getPluginDescriptor();

        String forkedLifecycle = mojoDescriptor.getExecuteLifecycle();

        if (forkedLifecycle == null || forkedLifecycle.isEmpty()) {
            return;
        }

            throws PluginNotFoundException, PluginResolutionException, PluginDescriptorParsingException,
                    InvalidPluginDescriptorException {
        return mavenPluginManager.getPluginDescriptor(plugin, repositories, session);
    }

    // ----------------------------------------------------------------------
    // Mojo execution
    // ----------------------------------------------------------------------

        InputSource defaultBindings = new InputSource();
        defaultBindings.setModelId(DefaultLifecycleRegistry.DEFAULT_LIFECYCLE_MODELID);

        final Plugin plugin = mojoDescriptor.getPluginDescriptor().getPlugin();
        plugin.setLocation("version", new InputLocation(12, 34, defaultBindings));
        MojoExecution result = new MojoExecution(plugin, goal, executionId);