}

    @Override
    public Path getRootDirectory() {
        if (rootDirectory == null) {
            throw new IllegalStateException(RootLocator.UNABLE_TO_FIND_ROOT_PROJECT_MESSAGE);
        }
        return rootDirectory;
    }

    @Override
    public MavenExecutionRequest setRootDirectory(Path rootDirectory) {
        this.rootDirectory = rootDirectory;

          <type>String</type>
          <defaultValue>default,legacy</defaultValue>
          <description>
            The layouts of repositories being mirrored. This value can be used to restrict the usage
            of the mirror to repositories with a matching layout (apart from a matching id).
            @since Maven 3.
          </description>
        </field>
        <field>
          <name>blocked</name>

     */
    int getTerminalWidth();

    /**
     * Creates a new message builder.
     * @return a new message builder
     */
    @Nonnull
    MessageBuilder builder();

    /**
     * Creates a new message builder of the specified size.
     * @param size the initial size of the message builder buffer
     * @return a new message builder
     */
    @Nonnull
    MessageBuilder builder(int size);

@Experimental
public class XmlWriterException extends MavenException {

    private final Location location;

    /**
     * @param message the message for the exception
     * @param e the exception itself
     */
    public XmlWriterException(String message, Location location, Exception e) {
        super(message, e);
        this.location = location;
    }

    public Location getLocation() {
        return location;
    }

/**
 * @since 4.0.0
 */
@Experimental
@Consumer
public class VersionResolverException extends MavenException {
    public VersionResolverException(String message, Throwable cause) {
        super(message, cause);
    }

                            + (message != null ? ": " + message : ""));
                }
            }
        }

        if (logger.isDebugEnabled()) {
            node.accept(new DependencyGraphDumper(logger::debug));
        }

        try {

        }
    }

    static class CycleDetectedException extends RuntimeException {
        private final List<String> cycle;

        CycleDetectedException(String message, List<String> cycle) {
            super(message);
            this.cycle = cycle;
        }

        public List<String> getCycle() {
            return cycle;
        }

        @Override

        } catch (final CycleDetectedException e) {
            String message = "The projects in the reactor contain a cyclic reference: " + e.getMessage();
            ProjectCycleException error = new ProjectCycleException(message, e);
            return Result.error(
                    Collections.singletonList(new DefaultModelProblem(null, null, null, null, 0, 0, error)));

 * under the License.
 */
package org.apache.maven.api.services;

/**
 * Describes a problem that was encountered during model building. A problem can either be an exception that was thrown
 * or a simple string message. In addition, a problem carries a hint about its source, e.g. the POM file that exhibits
 * the problem.
 *
 */
public interface ModelProblem extends BuilderProblem {

    /**
     * Version
     */

            if (coord.getVersion().getVersionRange() != null
                    && coord.getVersion().getVersionRange().getUpperBoundary() == null) {
                // Message below is checked for in the MNG-2199 core IT.
                throw new ModelResolverException(
                        String.format("The requested version range '%s' does not specify an upper bound", version),