assertEquals(4, problems.messages.size());
        assertContains(problems.messages.get(0), "'mirrors.mirror.id' must not be 'local'");
        assertContains(problems.messages.get(1), "'mirrors.mirror.url' for local is missing");
        assertContains(problems.messages.get(2), "'mirrors.mirror.mirrorOf' for local is missing");

         * the way 2.x works. When we're in strict mode, the removal of duplicates just saves other merging steps from
         * aftereffects and bogus error messages.
         */
        List<Dependency> dependencies = model.getDependencies();
        Map<String, Dependency> normalized = new LinkedHashMap<>(dependencies.size() * 2);

        for (Dependency dependency : dependencies) {

            }
        } catch (ComponentConfigurationException e) {
            String message = "Unable to parse configuration of mojo " + mojoDescriptor.getId();
            if (e.getFailedConfiguration() != null) {
                message += " for parameter " + e.getFailedConfiguration().getName();
            }
            message += ": " + e.getMessage();

    a debug message.

  * If the wagon is bound to "file://" then:

    Retrieve the file or base-url file to be "downloaded".

    * If the file (or more usefully, the base-url file) exists, proceed.

    * If the file (or base-url file) doesn't exist, assume that this location
      is part of a file-share. Ignore the request and print a debug message
      as above.

            For example, if you want that resource to appear in a specific package
            ({@code org.apache.maven.messages}), you must specify this
            element with this value: {@code org/apache/maven/messages}.
            This is not required if you simply put the resources in that directory
            structure at the source, however.
          </description>

            MojoDescriptor mojoDescriptor, ClassRealm pluginRealm, String message, Throwable e) {
        super(mojoDescriptor, message, e);

        this.pluginRealm = pluginRealm;
    }

    public PluginContainerException(
            MojoDescriptor mojoDescriptor, ClassRealm pluginRealm, String message, ComponentLookupException e) {
        super(mojoDescriptor, message, e);

        this.pluginRealm = pluginRealm;
    }

 */
@Experimental
public class LookupException extends MavenException {

    public LookupException(String message) {
        super(message);
    }

    /**
     * @param message the message to give
     * @param e the {@link Exception}
     */
    public LookupException(String message, Exception e) {
        super(message, e);
    }

    /**
     * @param e the {@link Exception}
     */

        return model;
    }

    private boolean containsCoordinates(String message, String groupId, String artifactId, String version) {
        return message != null
                && (groupId == null || message.contains(groupId))
                && (artifactId == null || message.contains(artifactId))
                && (version == null || message.contains(version));
    }

    @Override
    public void setSource(String source) {
        this.source = source;
    }

    @Override
    public void add(Problem.Severity severity, String message, int line, int column, Exception cause) {
        Problem problem = new DefaultProblem(message, severity, source, line, column, cause);

        problems.add(problem);
    }

                if (relocation.target == SENTINEL) {
                    String message = "The artifact " + original + " has been banned from resolution: "
                            + (relocation.global ? "User global ban" : "User project ban");
                    LOGGER.debug(message);
                    throw new ArtifactDescriptorException(artifactDescriptorResult, message);
                }
                Artifact result = new RelocatedArtifact(