public static final String DATE_FORMAT_ISO_8601_BASIC = "yyyyMMdd'T'HHmmss.SSSZ";

    public static final String DATE_FORMAT_ISO_8601_EXTEND = "yyyy-MM-dd'T'HH:mm:ss.SSSZ";

    public static final String DATE_FORMAT_ISO_8601_EXTEND_UTC = "yyyy-MM-dd'T'HH:mm:ss.SSS'Z'";

    public static final String DATE_FORMAT_DIGIT_ONLY = "yyyyMMddHHmmss";

    protected CoreLibConstants() {
    }

    PropertyContributorExtender(Lookup lookup) {
        this.lookup = lookup;
    }

    @SuppressWarnings({"rawtypes", "unchecked"})
    @Override
    public void extend(MavenExecutionRequest mavenExecutionRequest) {
        Map<String, PropertyContributor> effectivePropertyContributors = lookup.lookupMap(PropertyContributor.class);
        if (!effectivePropertyContributors.isEmpty()) {

import org.apache.maven.api.annotations.Experimental;
import org.apache.maven.api.annotations.Nonnull;

/**
 * An SPI interface to extend Maven with a new enum value.
 *
 * @param <T> The type of extensible enum to extend
 */
@Experimental
@Consumer
public interface ExtensibleEnumProvider<T extends ExtensibleEnum> extends SpiService {

    /**
     * Registers new values for the T extensible enum.
     *

import org.eclipse.aether.repository.MirrorSelector;
import org.eclipse.aether.repository.ProxySelector;

/**
 * Strictly internal component able to "extend" session in some way.
 *
 * @since 4.0.0
 */
interface RepositorySystemSessionExtender {
    void extend(
            MavenExecutionRequest mavenExecutionRequest,
            Map<String, Object> configProperties,
            MirrorSelector mirrorSelector,

                    final Date timestamp =
                            new SimpleDateFormat(Constants.DATE_FORMAT_ISO_8601_EXTEND_UTC).parse(fileMap.get("@timestamp").toString());
                    for (final DictionaryCreator creator : creatorList) {
                        final DictionaryFile<? extends DictionaryItem> file = creator.create(path, timestamp);
                        if (file != null) {
                            return file;

import org.apache.maven.execution.MavenExecutionRequest;

/**
 * Strictly internal component able to "extend" {@link MavenExecutionRequest} in some way before it is used to
 * construct resolver session.
 *
 * @since 4.0.0
 */
interface MavenExecutionRequestExtender {
    void extend(MavenExecutionRequest mavenExecutionRequest);

        @SuppressWarnings("resource")
        final CsvReader csvReader = new CsvReader(reader, new CsvConfig());
        final DateFormat formatter = new SimpleDateFormat(CoreLibConstants.DATE_FORMAT_ISO_8601_EXTEND);
        try {
            List<String> list;
            csvReader.readValues(); // ignore header
            while ((list = csvReader.readValues()) != null) {
                try {

 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.internal.impl.resolver.artifact;

/**
 * The keys for Maven specific properties of artifacts. These properties "extend" (or supplement) the Resolver
 * core properties defined in {@link org.eclipse.aether.artifact.ArtifactProperties}.
 *
 * @see org.eclipse.aether.artifact.ArtifactProperties
 * @since 4.0.0
 */

 * version of this interface will be made to <i>extend</i> {@code java.util.function.Predicate}, so
 * that conversion will be necessary in only one direction. At that time, this interface will be
 * officially discouraged.
 *
 * @author Kevin Bourrillion
 * @since 2.0
 */
@GwtCompatible
@ElementTypesAreNonnullByDefault
public interface Predicate<T extends @Nullable Object> {
  /**

 * constructed instance. To create session out of builder, use {@link SessionBuilder#build()}. For proper closing
 * of sessions, use {@link CloseableSession#close()} method on built instance(s).
 * <p>
 * Extend this class and override methods to customize, if needed.
 *
 * @since 4.0.0
 */
public class MavenSessionBuilderSupplier implements Supplier<SessionBuilder> {
    protected final RepositorySystem repositorySystem;