String level = ConfigUtils.getString(session, null, MAVEN_PLUGIN_VALIDATION_KEY);
        if (level == null || level.isEmpty()) {
            return DEFAULT_VALIDATION_LEVEL;
        }
        try {
            return ValidationReportLevel.valueOf(level.toUpperCase(Locale.ENGLISH));
        } catch (IllegalArgumentException e) {
            logger.warn(

public synchronized class Jdk14Logger implements org.apache.commons.logging.Log, java.io.Serializable { protected transient java.util.logging.Logger logger; protected String name; public void Jdk14Logger(String); private void log(java.util.logging.Level, String, Throwable); public void debug(Object); public void debug(Object, Throwable); public void error(Object); public void error(Object, Throwable); public void fatal(Object); public void fatal(Object, Throwable); public java.util.logging.Logger...

      <codeSegments>
        <codeSegment>
          <version>1.0.0/1.3.0</version>
          <code>
    public static final String USER_LEVEL = "user-level";
    public static final String PROJECT_LEVEL = "project-level";
    public static final String GLOBAL_LEVEL = "global-level";

    private String sourceLevel = USER_LEVEL;
    private boolean sourceLevelSet = false;

    public void setSourceLevel(String sourceLevel) {

    private String getMessage(String message, Throwable exception) {
        String fullMessage = (message != null) ? message : "";

        // To break out of possible endless loop when getCause returns "this", or dejaVu for n-level recursion (n>1)
        Set<Throwable> dejaVu = Collections.newSetFromMap(new IdentityHashMap<>());
        for (Throwable t = exception; t != null && t != t.getCause(); t = t.getCause()) {

            logger.debug("Ignoring unresolvable plugin version {}", version, e);
            return false;
        } catch (Exception e) {
            // ignore for now and delay failure to higher level processing
            return true;
        }

        try {
            pluginManager.checkPrerequisites(pluginDescriptor);
        } catch (PluginIncompatibleException e) {

     *   <li><b>Module hierarchy:</b> if {@code module-info.class} files are found in sub-directories,
     *       at a deep intentionally restricted to one level, then builds a map of module names found
     *       in the descriptor of each sub-directory.</li>
     * </ul>
     *
     * Otherwise if the given path is a JAR file, then there is a choice:
     * <ul>

        declaringProject.getModel().setParent(createParent(parentProject));
        projects.add(declaringProject);

        MavenProject pluginLevelDepProject = createProject("groupId", "plugin-level-dep", "1.0");
        pluginLevelDepProject.setParent(parentProject);
        pluginLevelDepProject.getModel().setParent(createParent(parentProject));
        projects.add(pluginLevelDepProject);

    <!-- javax.inject (JSR-330) -->
    <exportedPackage>javax.inject.*</exportedPackage>
    <!-- javax.enterprise.inject (JSR-299): Must never be exported if needed at plugin level, plugin adds it
         there is no justification to get it at Maven level and leaking it will conflict.
    <exportedPackage>javax.enterprise.util.*</exportedPackage>
    <exportedPackage>javax.enterprise.inject.*</exportedPackage>
    -->

 *
 * TODO: replace ModelRepositoryHolder with just the enum for the strategy
 * TODO: replace validation level with an enum (though, we usually need just a boolean)
 *
 * @since 4.0.0
 */
@Experimental
@Immutable
public interface ModelBuilderRequest {

    /**
     * Denotes minimal validation of POMs. This validation level is meant for processing of POMs from repositories
     * during metadata retrieval.
     */

 |
 |  1. User Level. This settings.xml file provides configuration for a single user,
 |                 and is normally provided in ${user.home}/.m2/settings.xml.
 |
 |                 NOTE: This location can be overridden with the CLI option:
 |
 |                 -s /path/to/user/settings.xml
 |
 |  2. Global Level. This settings.xml file provides configuration for all Maven