List<Plugin> plugins = getMetadata().getPlugins();
        boolean found = false;
        for (Iterator<Plugin> i = plugins.iterator(); i.hasNext() && !found; ) {
            Plugin plugin = i.next();
            if (plugin.getPrefix().equals(goalPrefix)) {
                found = true;
            }
        }
        if (!found) {
            Plugin plugin = new Plugin();

     * @param session The repository session to use, must not be {@code null}.
     * @param repositories The plugin repositories to query, may be {@code null}.
     */
    public DefaultPluginVersionRequest(
            Plugin plugin, RepositorySystemSession session, List<RemoteRepository> repositories) {
        setGroupId(plugin.getGroupId());

        this.project = project;
        pluginGroupId = plugin.getGroupId();
        pluginArtifactId = plugin.getArtifactId();
        pluginVersion = plugin.getVersion();
    }

    public PluginManagerException(Plugin plugin, String message, Throwable cause) {
        super(message, cause);

        pluginGroupId = plugin.getGroupId();
        pluginArtifactId = plugin.getArtifactId();
        pluginVersion = plugin.getVersion();

        "process-test-resources",
                "org.apache.maven.plugins:maven-resources-plugin:" + RESOURCES_PLUGIN_VERSION + ":testResources",
        "test-compile", "org.apache.maven.plugins:maven-compiler-plugin:" + COMPILER_PLUGIN_VERSION + ":testCompile",
        "test", "org.apache.maven.plugins:maven-surefire-plugin:" + SUREFIRE_PLUGIN_VERSION + ":test",

              <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>

        assertNotNull(plugin, "Should create plugin element");

        String xmlOutput = DomUtils.toXml(doc);
        assertTrue(xmlOutput.contains("<plugin>"), "Should contain plugin element");
        assertTrue(xmlOutput.contains("<groupId>org.apache.maven.plugins</groupId>"), "Should contain groupId");

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

        throw new UnsupportedOperationException();
    }

    public static List<Plugin> orderAfterMerge(
            List<Plugin> merged, List<Plugin> highPrioritySource, List<Plugin> lowPrioritySource) {
        throw new UnsupportedOperationException();
    }

    public static void mergePluginDefinitions(Plugin child, Plugin parent, boolean handleAsInheritance) {
        throw new UnsupportedOperationException();
    }

        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        *");

            <goals>
              <goal>velocity</goal>
            </goals>
          </execution>
        </executions>
      </plugin>
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-jar-plugin</artifactId>
        <configuration>
          <archive>
            <manifest>
              <mainClass>org.apache.maven.cling.MavenCling</mainClass>