Path path = request.getPath();
        URL url = request.getURL();
        Reader reader = request.getReader();
        InputStream inputStream = request.getInputStream();
        if (path == null && url == null && reader == null && inputStream == null) {
            throw new IllegalArgumentException("path, url, reader or inputStream must be non null");
        }
        try {

import java.util.Arrays;
import java.util.List;

import org.apache.maven.plugin.PluginValidationManager;

/**
 * Common implementations for plugin parameters configuration validation that relies on Mojo descriptor (leaves out
 * core parameters by default).
 *
 */
abstract class AbstractMavenPluginDescriptorSourcedParametersValidator extends AbstractMavenPluginParametersValidator {

    String ROLE = ResolutionListener.class.getName();

    int TEST_ARTIFACT = 1;

    int PROCESS_CHILDREN = 2;

    int FINISH_PROCESSING_CHILDREN = 3;

    int INCLUDE_ARTIFACT = 4;

    int OMIT_FOR_NEARER = 5;

    int UPDATE_SCOPE = 6;

    @Deprecated
    int MANAGE_ARTIFACT = 7;

    int OMIT_FOR_CYCLE = 8;

    /**

import org.apache.maven.project.MavenProject;

/**
 * A build context that matches a Maven project to a given task segment, and the session to be used.
 * <p>
 * A note to the reader;
 * </p>
 * <p>
 * There are several issues/discussions regarding how "aggregator" plugins should be handled.
 * Read for instance http://docs.codehaus.org/display/MAVEN/Deterministic+Lifecycle+Planning
 * </p>
 * <p>

        String omittedVersion = omitted.getVersion();
        String keptVersion = kept.getVersion();

        if (!Objects.equals(omittedVersion, keptVersion)) {
            logger.debug(indent + omitted + " (removed - nearer found: " + keptVersion + ")");
        }
    }

    public void omitForCycle(Artifact omitted) {
        logger.debug(indent + omitted + " (removed - causes a cycle in the graph)");
    }

    }

    @Override
    public File findArtifact(Artifact artifact) {
        requireNonNull(artifact, "artifact cannot be null");
        File file = null;

        for (WorkspaceReader reader : readers) {
            file = reader.findArtifact(artifact);
            if (file != null) {
                break;
            }
        }

        return file;
    }

    @Override

        try (InputStream is = Files.newInputStream(settingsFile.toPath())) {
            SettingsStaxReader reader = new SettingsStaxReader();
            InputSource source = new InputSource(settingsFile.toString());
            return new Settings(reader.read(is, true, source));
        }
    }

                    ""
                };

                int i = 0;
                for (String col : cols) {
                    assertEquals(expected[i++], col.trim(), "Wrong column header");
                }
            } else if (line.startsWith("|")) {
                String[] cols = line.split("\\|");

                String type = trimApt(cols[1]);
                String classifier = trimApt(cols[2]);

        assertEquals(basedir, new File(repo.getBasedir()));
    }

    @Test
    void testAuthenticationHandling() {
        Server server = new Server();
        server.setId("repository");
        server.setUsername("jason");
        server.setPassword("abc123");

        ArtifactRepository repository =
                repositorySystem.createArtifactRepository("repository", "http://foo", null, null, null);

        return read(Files.newInputStream(input.toPath()), options);
    }

    public Metadata read(Reader input, Map<String, ?> options) throws IOException {
        Objects.requireNonNull(input, "input cannot be null");

        try (Reader in = input) {
            return new Metadata(new MetadataStaxReader().read(in, isStrict(options)));
        } catch (XMLStreamException e) {