private static final char PATH_SEPARATOR = '/';

    private static final char GROUP_SEPARATOR = '.';

    private static final char ARTIFACT_SEPARATOR = '-';

    public String getId() {
        return "default";
    }

    public String pathOf(Artifact artifact) {
        ArtifactHandler artifactHandler = artifact.getArtifactHandler();

        StringBuilder path = new StringBuilder(128);

                            .getDelegate()
                            .getDistributionManagement()
                            .getRepository();
                    if (r.getId() != null
                            && !r.getId().isEmpty()
                            && r.getUrl() != null
                            && !r.getUrl().isEmpty()) {

     * @return a profile
     */
    public static Profile convertToSettingsProfile(org.apache.maven.api.model.Profile modelProfile) {
        Profile.Builder profile = Profile.newBuilder();

        profile.id(modelProfile.getId());

        org.apache.maven.api.model.Activation modelActivation = modelProfile.getActivation();

        if (modelActivation != null) {
            Activation.Builder activation = Activation.newBuilder();

                if (logger.isDebugEnabled()) {
                    logger.warn("Failed to retrieve plugin descriptor for {}: {}", plugin.getId(), e.getMessage(), e);
                } else {
                    logger.warn("Failed to retrieve plugin descriptor for {}: {}", plugin.getId(), e.getMessage());
                }
            }
        }

        return null;
    }

        assertEquals(4, executions.size());
        assertEquals("default-resources", executions.get(0).getId());
        assertEquals("default-testResources", executions.get(1).getId());
        assertEquals("test-1", executions.get(2).getId());
        assertEquals("test-2", executions.get(3).getId());
    }

    @Test
    void testPluginDeclarationsRetainPomOrderAfterInjectionOfDefaultPlugins() throws Exception {

  interface Base {
    CharSequence getId();
  }

  interface Sub extends Base {
    @Override
    String getId();
  }

  private static class ForwardingSub implements Sub {
    private final Sub delegate;

    ForwardingSub(Sub delegate) {
      this.delegate = delegate;
    }

    @Override
    public String getId() {
      return delegate.getId();
    }

    @Override

            ByteArrayOutputStream os = new ByteArrayOutputStream(1024);
            PrintStream ps = new PrintStream(os);
            ps.println(
                    "A required class was missing while executing " + mojoDescriptor.getId() + ": " + e.getMessage());
            pluginRealm.display(ps);
            Exception wrapper = new PluginContainerException(mojoDescriptor, pluginRealm, os.toString(), e);

            }
            item = newItem;
        }

        public ProtwordsItem write(final ProtwordsItem oldItem) {
            try {
                if ((item == null) || (item.getId() != oldItem.getId()) || !item.isUpdated()) {
                    writer.write(oldItem.toLineString());
                    writer.write(Constants.LINE_SEPARATOR);
                    return oldItem;
                }

            problems.add(
                    BuilderProblem.Severity.ERROR,
                    ModelProblem.Version.BASE,
                    "The property name is required to activate the profile " + profile.getId(),
                    property.getLocation(""));
            return false;
        }

        String sysValue = context.getUserProperties().get(name);
        if (sysValue == null) {

        }
        return result;
    }

    public static String getLayout(ArtifactRepository repo) {
        try {
            return repo.getLayout().getId();
        } catch (LinkageError e) {
            /*
             * NOTE: getId() was added in 3.x and is as such not implemented by plugins compiled against 2.x APIs.
             */
            String className = repo.getLayout().getClass().getSimpleName();