/**
 * The annotated element can be {@code null}.
 *
 * @see Nonnull
 * @since 4.0.0
 */
@Experimental
@Documented
@Retention(RetentionPolicy.CLASS)

import java.nio.file.Path;

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

/**
 * Interface used to locate the root directory for a given project.
 *
 * The root locator is usually looked up from the plexus container.
 * One notable exception is the computation of the early {@code session.rootDirectory}
 * property which happens very early.  The implementation used in this case

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

/**
 * A dependency exclusion.
 *
 * @since 4.0.0
 * @see DependencyCoordinate#getExclusions()
 */
@Experimental
public interface Exclusion {
    @Nullable
    String getGroupId();

    @Nullable
    String getArtifactId();

    }

    private Exclusion toExclusion(org.eclipse.aether.graph.Exclusion exclusion) {
        return new Exclusion() {
            @Nullable
            @Override
            public String getGroupId() {
                return exclusion.getGroupId();
            }

            @Nullable
            @Override
            public String getArtifactId() {
                return exclusion.getArtifactId();
            }

import java.util.Optional;

import org.apache.maven.api.annotations.Consumer;
import org.apache.maven.api.annotations.Experimental;
import org.apache.maven.api.annotations.Nonnull;
import org.apache.maven.api.annotations.Nullable;
import org.apache.maven.api.model.Model;
import org.apache.maven.api.services.Source;

/**
 * The {@code ModelParser} interface is used to locate and read {@link Model}s from the file system.

import org.apache.maven.api.annotations.Nullable;

/**
 *
 * @since 4.0.0
 */
@Experimental
@Immutable
public interface DependencyCoordinate extends ArtifactCoordinate {
    /**
     * The type of the artifact.
     *
     * @return the type
     */
    @Nonnull
    Type getType();

    @Nonnull
    DependencyScope getScope();

    @Nullable
    Boolean getOptional();

    @Nonnull

import java.nio.file.Path;

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

import static org.apache.maven.api.services.BaseRequest.nonNull;

/**
 * Provides access to the contents of a source independently of the
 * backing store (e.g. file system, database, memory).
 * <p>

import org.apache.maven.api.DependencyScope;
import org.apache.maven.api.Type;
import org.apache.maven.api.Version;
import org.apache.maven.api.annotations.Nonnull;
import org.apache.maven.api.annotations.Nullable;
import org.eclipse.aether.artifact.ArtifactProperties;

import static org.apache.maven.internal.impl.Utils.nonNull;

public class DefaultDependency implements Dependency {

    private final InternalSession session;

 */
package org.apache.maven.api.services.model;

import java.io.IOException;
import java.nio.file.Path;

import org.apache.maven.api.annotations.Nonnull;
import org.apache.maven.api.annotations.Nullable;
import org.apache.maven.api.model.Model;
import org.apache.maven.api.services.xml.XmlReaderException;
import org.apache.maven.api.services.xml.XmlReaderRequest;

/**
 * ModelProcessor
 */

import org.apache.maven.api.DependencyScope;
import org.apache.maven.api.Type;
import org.apache.maven.api.Version;
import org.apache.maven.api.annotations.Nonnull;
import org.apache.maven.api.annotations.Nullable;
import org.apache.maven.repository.internal.DefaultModelVersionParser;
import org.eclipse.aether.artifact.ArtifactProperties;

import static org.apache.maven.internal.impl.Utils.nonNull;