+ " conflicting coordinates: {}:{}."
                                                + " Your JAR contains rogue Maven Plugin metadata."
                                                + " Possible causes may be: shaded into this JAR some Maven Plugin or some rogue resource.",

              <goal>xsd</goal>
            </goals>
            <phase>generate-sources</phase>
          </execution>
        </executions>
      </plugin>
      <plugin>
        <groupId>org.codehaus.mojo</groupId>
        <artifactId>build-helper-maven-plugin</artifactId>
        <executions>
          <execution>
            <goals>
              <goal>attach-artifact</goal>
            </goals>

<?xml version="1.0" encoding="UTF-8"?>
<metadata>
  <plugins>
    <plugin>
      <name>Maven Integration Test Plugin</name>
      <prefix>it</prefix>
      <artifactId>maven-it-plugin</artifactId>
    </plugin>
  </plugins>

    }

    /**
     * Deletes the specified plugin.
     *
     * @param form the delete form containing plugin information
     * @return HTML response redirecting to the plugin list
     */
    @Execute
    @Secured({ ROLE })
    public HtmlResponse delete(final DeleteForm form) {
        validate(form, messages -> {}, () -> asHtml(path_AdminPlugin_AdminPluginJsp));
        verifyToken(() -> asHtml(path_AdminPlugin_AdminPluginJsp));

        msgs.add("* contains the following plugin(s) that have goals not marked   *");
        msgs.add("* as @threadSafe to support parallel building.                  *");
        msgs.add("* While this /may/ work fine, please look for plugin updates    *");
        msgs.add("* and/or request plugins be made thread-safe.                   *");
        msgs.add("* If reporting an issue, report it against the plugin in        *");

        assertEquals("org.apache.maven.plugins", plugin.getGroupId());
        assertEquals("maven-resources-plugin", plugin.getArtifactId());
    }

    // Prefixes

    @Test
    void testFindingPluginPrefixForCleanClean() throws Exception {
        File pom = getProject("project-basic");
        MavenSession session = createMavenSession(pom);
        Plugin plugin = mojoDescriptorCreator.findPluginForPrefix("clean", session);

    }

    private Plugin createPlugin(MavenProject project) {
        return createPlugin(project.getGroupId(), project.getArtifactId(), project.getVersion());
    }

    private Plugin createPlugin(String groupId, String artifactId, String version) {
        Plugin plugin = new Plugin();
        plugin.setGroupId(groupId);
        plugin.setArtifactId(artifactId);
        plugin.setVersion(version);
        return plugin;

import org.apache.maven.api.Lifecycle;
import org.apache.maven.api.model.Plugin;
import org.apache.maven.plugin.descriptor.PluginDescriptor;

class PluginLifecycle implements Lifecycle {
    private final org.apache.maven.api.plugin.descriptor.lifecycle.Lifecycle lifecycleOverlay;
    private final PluginDescriptor pluginDescriptor;

    PluginLifecycle(
            org.apache.maven.api.plugin.descriptor.lifecycle.Lifecycle lifecycleOverlay,

            List<Plugin> plugins,
            String prefix,
            String prefix2,
            ModelBuildingRequest request) {
        Severity errOn31 = getSeverity(request, ModelBuildingRequest.VALIDATION_LEVEL_MAVEN_3_1);

        Map<String, Plugin> index = new HashMap<>();

        for (Plugin plugin : plugins) {
            if (plugin.getGroupId() == null

<plugins>
  <plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-resources-plugin</artifactId>
    <version>1.0</version</version>