KIND, either express or implied.  See the License for the
specific language governing permissions and limitations
under the License.
-->

<settings>
  <localRepository>${user.home}/.m2/repository</localRepository>

        Settings settings = new Settings();
        Proxy proxy = new Proxy();
        String id = "foo";
        proxy.setId(id);
        proxy.setHost("www.example.com");
        settings.addProxy(proxy);
        settings.addProxy(proxy);

        SimpleProblemCollector problems = new SimpleProblemCollector();
        validator.validate(settings, problems);

 */
package org.apache.maven.settings;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Random;

import org.apache.maven.api.settings.Activation;
import org.apache.maven.api.settings.ActivationFile;
import org.apache.maven.api.settings.ActivationOS;
import org.apache.maven.api.settings.ActivationProperty;

import org.apache.maven.api.services.xml.XmlWriterException;
import org.apache.maven.api.services.xml.XmlWriterRequest;
import org.apache.maven.api.settings.InputSource;
import org.apache.maven.api.settings.Settings;
import org.apache.maven.settings.v4.SettingsStaxReader;
import org.apache.maven.settings.v4.SettingsStaxWriter;

import static org.apache.maven.internal.impl.StaxLocation.getLocation;

**/target/**
.project
.classpath
.settings/
.svn/
# Intellij
*.ipr
*.iml
.idea
.DS_Store
/bootstrap
/dependencies.xml
.java-version
.checkstyle
.factorypath
.vscode/
repo/

     *
     * @param model The model to validate, must not be {@code null}.
     * @param request The model building request that holds further settings, must not be {@code null}.
     * @param problems The container used to collect problems that were encountered, must not be {@code null}.
     */

    /**
     * Normalizes the well-known URLs of the specified model.
     *
     * @param model The model whose URLs should be normalized, may be {@code null}.
     * @param request The model building request that holds further settings, must not be {@code null}.
     */
    Model normalize(Model model, ModelBuilderRequest request);

import org.apache.maven.api.annotations.Nullable;
import org.apache.maven.api.services.Lookup;
import org.apache.maven.api.services.LookupException;
import org.apache.maven.api.services.MavenException;
import org.apache.maven.api.settings.Settings;
import org.apache.maven.artifact.repository.ArtifactRepository;
import org.apache.maven.bridge.MavenRepositorySystem;
import org.apache.maven.execution.MavenSession;
import org.apache.maven.plugin.MojoExecution;

import org.apache.maven.api.services.BuilderProblem;

/**
 * Describes a problem that was encountered during settings 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 settings file
 * that exhibits the problem.
 */
class DefaultBuilderProblem implements BuilderProblem {
    final String source;

     * @param profile The (read-only) profile whose values should be injected, may be <code>null</code>.
     * @param request The model building request that holds further settings, must not be {@code null}.
     * @param problems The container used to collect problems that were encountered, must not be {@code null}.
     */
    default Model injectProfile(