/**
     * Gets the problems that were encountered during the settings building. Note that only problems of severity
     * {@link BuilderProblem.Severity#WARNING} and below are reported here. Problems with a higher severity level cause
     * the settings builder to fail with a {@link ToolchainsBuilderException}.
     *
     * @return the problems that were encountered during the settings building, can be empty but never {@code null}
     */

 */
package org.apache.maven.artifact.repository.metadata;

/**
 * Problem storing the repository metadata in the local repository.
 *
 */
public class RepositoryMetadataStoreException extends Exception {
    public RepositoryMetadataStoreException(String message) {
        super(message);
    }

    public RepositoryMetadataStoreException(String message, Exception e) {
        super(message, e);
    }

    /**
     * Simply converts the given content to an xml string.
     *
     * @param content the object to convert
     * @return the xml string representation
     * @throws XmlWriterException if an error occurs during the transformation
     * @see #fromXmlString(String)
     */
    public static String toXml(@Nonnull Model content) throws XmlWriterException {
        return new DefaultModelXmlFactory().toXmlString(content);

    /**
     * Simply converts the given content to an xml string.
     *
     * @param content the object to convert
     * @return the xml string representation
     * @throws XmlWriterException if an error occurs during the transformation
     * @see #fromXmlString(String)
     */
    public static String toXml(@Nonnull Model content) throws XmlWriterException {
        return new DefaultModelXmlFactory().toXmlString(content);

        } else {
            trackingDir = event.getFile().getParentFile().toPath().resolve(".tracking");
        }

        String baseName;
        String ext = missing ? ".miss" : ".dep";
        Path trackingFile = null;

        String indent = "";
        ArrayList<String> trackingData = new ArrayList<>();

        if (collectStepTrace == null && plugin != null) {
            ext = ".plugin";

import org.apache.maven.api.model.Model;
import org.apache.maven.api.services.ModelBuilderRequest;

/**
 * Normalizes URLs to remove the ugly parent references "../" that got potentially inserted by URL adjustment during
 * model inheritance.
 *
 */
public interface ModelUrlNormalizer {

    /**
     * Normalizes the well-known URLs of the specified model.
     *

package org.apache.maven.building;

import java.util.ArrayList;
import java.util.List;

/**
 * Collects problems that are encountered during settings building.
 *
 */
class DefaultProblemCollector implements ProblemCollector {

    private final List<Problem> problems;

    private String source;

    DefaultProblemCollector(List<Problem> problems) {
        this.problems = (problems != null) ? problems : new ArrayList<>();

            Artifact artifact, ArtifactRepository remoteRepository, ArtifactRepository localRepository) {
        // metadata is added via addPluginArtifactMetadata
    }

    protected String constructVersion(Versioning versioning, String baseVersion) {
        return versioning.getLatest();
    }

     */
    void add(Problem.Severity severity, String message, int line, int column, Exception cause);

    /**
     * The next messages will be bound to this source. When calling this method again, previous messages keep
     * their source, but the next messages will use the new source.
     *
     * @param source a source
     */
    void setSource(String source);

    /**
     *

        return Collections.unmodifiableList(artifacts);
    }

    private Map<String, ClassLoader> calcImports(MavenProject project, ClassLoader parent, List<String> imports) {
        Map<String, ClassLoader> foreignImports = new HashMap<>();

        ClassLoader projectRealm = project.getClassRealm();
        if (projectRealm != null) {