/**
 * A listener for session events.
 * TODO: open this to other events like similar to {@code org.apache.maven.eventspy.EventSpy}
 *
 * @since 4.0.0
 */
@Experimental
@FunctionalInterface
@Consumer
public interface Listener {
    void onEvent(@Nonnull Event event);

/**
 * Provides some metadata operations, like querying the remote repository for a list of versions available for an
 * artifact.
 *
 */
@Deprecated
public interface MetadataSource {
    String ROLE = MetadataSource.class.getName();

    MetadataResolution retrieve(
            ArtifactMetadata artifact, ArtifactRepository localRepository, List<ArtifactRepository> remoteRepositories)

 * under the License.
 */
package org.apache.maven.exception;

/**
 * Transform an exception into useful end-user message.
 *
 * @since 3.0-alpha-3
 */
public interface ExceptionHandler {
    ExceptionSummary handleException(Throwable e);

 * specific language governing permissions and limitations
 * under the License.
 */

/**
 * This package contains the core classes for CLIng (CLI "new-gen"),
 * the next generation command-line interface for Maven.
 */

 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.api.services;

import org.apache.maven.api.Packaging;

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

import org.apache.maven.artifact.Artifact;

/**
 */
public interface ArtifactFilter {
    boolean include(Artifact artifact);

 * limitations under the License.
 */
package gradlebuild.docs.dsl.docbook;

import gradlebuild.docs.dsl.docbook.model.ClassDoc;
import org.w3c.dom.Element;

public interface ClassDocMemberRenderer {
    void renderSummaryTo(ClassDoc classDoc, Element parent);

    void renderDetailsTo(ClassDoc classDoc, Element parent);

import java.util.Map;
import java.util.Properties;

import org.apache.maven.model.Profile;
import org.apache.maven.profiles.activation.ProfileActivationException;

/**
 * ProfileManager
 */
@Deprecated
public interface ProfileManager {

    void addProfile(Profile profile);

    void explicitlyActivate(String profileId);

    void explicitlyActivate(List<String> profileIds);

    void explicitlyDeactivate(String profileId);

package org.apache.maven.project;

/**
 * Resolves the transitive dependencies of a project.
 *
 * @deprecated use {@code org.apache.maven.api.services.ProjectBuilder} instead
 */
@Deprecated(since = "4.0.0")
public interface ProjectDependenciesResolver {

    /**
     * Resolves the transitive dependencies of a project.
     *
     * @param request The resolution request holding the parameters, must not be {@code null}.

/**
 * Collects the output of the toolchains builder.
 *
 * @since 3.3.0
 * @deprecated since 4.0.0, use {@code org.apache.maven.api.services.ToolchainsBuilder} instead
 */
@Deprecated(since = "4.0.0")
public interface ToolchainsBuildingResult {

    /**
     * Gets the assembled toolchains.
     *
     * @return The assembled toolchains, never {@code null}.
     */
    PersistedToolchains getEffectiveToolchains();

    /**