final PluginDescriptor descriptor = new PluginDescriptor();
        descriptor.setGroupId(plugin.getGroupId());
        descriptor.setArtifactId(plugin.getArtifactId());
        descriptor.setPlugin(plugin);
        descriptor.setVersion(plugin.getVersion());
        final MojoDescriptor mojoDescriptor = new MojoDescriptor();
        mojoDescriptor.setPluginDescriptor(descriptor);
        return mojoDescriptor;
    }

        Plugin plugin = new Plugin();
        plugin.setGroupId("org.apache.maven.test.MavenExecutionPlan");
        plugin.setArtifactId("stub-plugin-" + phaseName);
        descriptor.setPlugin(plugin);
        descriptor.setArtifactId("artifact." + phaseName);
        mojoDescriptor.setPluginDescriptor(descriptor);
        mojoDescriptor.setThreadSafe(threadSafe);
        return mojoDescriptor;
    }

    }

    public String getRequiredJavaVersion() {
        return requiredJavaVersion;
    }

    public void setPlugin(Plugin plugin) {
        this.plugin = plugin;
    }

    public Plugin getPlugin() {
        return plugin;
    }

    public Artifact getPluginArtifact() {
        return pluginArtifact;
    }

                descriptor.setRequiredMavenVersion(artifact.getProperty("requiredMavenVersion", null));
            }

            return descriptor;
        });

        pluginDescriptor.setPlugin(plugin);

        return pluginDescriptor;
    }

    private PluginDescriptor extractPluginDescriptor(Artifact pluginArtifact, Plugin plugin)

        super("A cycle was detected in the component graph of the plugin: " + plugin.getArtifactId());

        this.plugin = plugin;
    }

    public Plugin getPlugin() {
        return plugin;
    }

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

/**
 * Simple test to verify that Plugin objects returned by MavenProject.getPlugin() are connected to the project model.
 * This test specifically verifies the fix for the <a href="https://github.com/apache/maven/pull/2530">issue</a> where
 * getPlugin() was returning disconnected Plugin objects.
 */
class PluginConnectionSimpleTest {

    @Test

        MavenSession session = createMavenSession(getProject("project-contributing-system-scope-plugin-dep"));
        MavenProject project = session.getCurrentProject();
        Plugin plugin = project.getPlugin("org.apache.maven.its.plugins:maven-it-plugin");

        RepositoryRequest repositoryRequest = new DefaultRepositoryRequest();
        repositoryRequest.setLocalRepository(getLocalRepository());

    public org.apache.maven.plugin.MojoExecution getDelegate() {
        return delegate;
    }

    @Override
    public Plugin getPlugin() {
        return new Plugin() {
            @Override
            public org.apache.maven.api.model.Plugin getModel() {
                return delegate.getPlugin().getDelegate();
            }

            @Override
            public PluginDescriptor getDescriptor() {

    }

    public String getLifecyclePhase() {
        return mojoExecution.getLifecyclePhase();
    }

    public Plugin getPlugin() {
        final MojoDescriptor mojoDescriptor = getMojoExecution().getMojoDescriptor();
        return mojoDescriptor.getPluginDescriptor().getPlugin();
    }

    @Override
    public String toString() {

                new PluginParameterExpressionEvaluatorV4(session, null, exec).evaluate("${mojo.plugin.descriptor}");

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

        assertSame(
                exec.getPlugin().getDescriptor(),
                result,
                "${mojo.plugin.descriptor} expression does not return plugin descriptor.");
    }

    @Test