ERROR, //
        WARNING //
    }

    /**
     * Gets the hint about the source of the problem. While the syntax of this hint is unspecified and depends on the
     * creator of the problem, the general expectation is that the hint provides sufficient information to the user to
     * track the problem back to its origin. A concrete example for such a source hint can be the file path or URL from
     * which the settings were read.
     *

          <role-hint>default</role-hint>
          <field-name>container</field-name>
        </requirement>
        <requirement>
          <role>org.apache.maven.plugin.LegacySupport</role>
          <role-hint>default</role-hint>
          <field-name>legacySupport</field-name>
        </requirement>
        <requirement>
          <role>org.eclipse.aether.RepositorySystem</role>
          <role-hint>default</role-hint>

      <role-hint>b2</role-hint>
      <implementation>org.apache.maven.artifact.manager.WagonB</implementation>
    </component>
    <component>
      <role>org.apache.maven.wagon.Wagon</role>
      <role-hint>c</role-hint>
      <implementation>org.apache.maven.artifact.manager.WagonC</implementation>
    </component>
    <component>
      <role>org.apache.maven.wagon.Wagon</role>
      <role-hint>string</role-hint>

    }

    /**
     * The logger name for a component with a non-null hint is <code>role.hint</code>.
     * <b>Warning</b>: this does not conform to logger name as class name convention.
     * (and what about <code>null</code> and <code>default</code> hint equivalence?)
     */
    public Logger getLoggerForComponent(String role, String hint) {
        return (null == hint
                ? getLoggerForComponent(role)

     * creator of the problem, the general expectation is that the hint provides sufficient information to the user to
     * track the problem back to its origin. A concrete example for such a source hint can be the file path or URL from
     * which the settings were read.
     *
     * @return The hint about the source of the problem or an empty string if unknown, never {@code null}.
     */
    String getSource();

/**
 * This realizes the metadata source via the default hint to provide backward-compat with Maven 2.x whose Plexus version
 * registered component descriptors twice: once keyed by role+roleHint and once keyed by role only. This effectively
 * made the metadata source available with its original role hint ("maven") as well as the default hint.
 *
 */
@Named
@Singleton
@Deprecated

 * the fact that the problem reporter has/should not have information about the calling context and hence cannot provide
 * an expressive source hint for the model problem. Instead, the source hint is configured by the model builder before
 * it delegates to other components that potentially encounter problems. Then, the problem reporter can focus on

specific language governing permissions and limitations
under the License.
-->

<plexus>
  <components>
    <component>
      <role>org.apache.maven.wagon.Wagon</role>
      <role-hint>testfile</role-hint>
      <implementation>org.apache.maven.artifact.resolver.TestFileWagon</implementation>
      <instantiation-strategy>per-lookup</instantiation-strategy>
    </component>
  </components>

 * the problem.
 *
 * @deprecated use {@link org.apache.maven.api.services.ModelBuilder} instead
 */
@Deprecated(since = "4.0.0")
public class DefaultModelProblem implements ModelProblem {

    private final String source;

    private final int lineNumber;

    private final int columnNumber;

    private final String modelId;

 */
@Deprecated(since = "4.0.0")
public class ModelProblemUtils {

    /**
     * Creates a user-friendly source hint for the specified model.
     *
     * @param model The model to create a source hint for, may be {@code null}.
     * @return The user-friendly source hint, never {@code null}.
     */
    static String toSourceHint(Model model) {
        if (model == null) {
            return "";
        }