/**
 * Defines a simple logging interface for Maven CLI operations.
 * This interface provides methods for logging messages at different severity levels
 * and supports logging with or without associated exceptions.
 *
 * @since 4.0.0
 */
@Experimental
public interface Logger {

    /**
     * Represents the severity levels for log messages.
     */
    enum Level {
        DEBUG,
        INFO,
        WARN,
        ERROR

 * the garbage collector reclaims the referent. This is a simpler alternative to using a {@link
 * ReferenceQueue}.
 *
 * @author Bob Lee
 * @since 2.0
 */
@J2ktIncompatible
@GwtIncompatible
@ElementTypesAreNonnullByDefault
public abstract class FinalizableWeakReference<T> extends WeakReference<T>
    implements FinalizableReference {
  /**

 * the garbage collector reclaims the referent. This is a simpler alternative to using a {@link
 * ReferenceQueue}.
 *
 * @author Bob Lee
 * @since 2.0
 */
@J2ktIncompatible
@GwtIncompatible
@ElementTypesAreNonnullByDefault
public abstract class FinalizableWeakReference<T> extends WeakReference<T>
    implements FinalizableReference {
  /**

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

import java.io.Serial;

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

/**
 * The Exception class throw by the {@link Lookup} service.
 *
 * @since 4.0.0
 */
@Experimental
public class LookupException extends MavenException {

    @Serial
    private static final long serialVersionUID = -6259322450070320286L;

    public LookupException(String message) {

 * model inheritance.
 *
 * @deprecated use {@link org.apache.maven.api.services.ModelBuilder} instead
 */
@Deprecated(since = "4.0.0")
public interface UrlNormalizer {

    /**
     * Normalizes the specified URL.
     *
     * @param url The URL to normalize, may be {@code null}.

import org.apache.maven.api.cli.mvn.MavenInvokerRequest;
import org.apache.maven.api.cli.mvn.MavenOptions;

/**
 * Resident invoker. Instance is shut down when this instance is closed.
 *
 * @since 4.0.0
 */
@Experimental
public interface ResidentMavenInvoker extends MavenInvoker<MavenInvokerRequest<MavenOptions>> {
    /**
     * Closes cleanly the daemon.
     */
    @Override

* Logging Implementation

 Maven 3.1.0 ships bundled with {{{https://www.slf4j.org/api/org/slf4j/simple/SimpleLogger.html}SLF4J simple logger}} and since 3.5.0 {{{../maven-slf4j-provider/}Maven-customized <<<maven-slf4j-provider>>>}},
 but is ready to use other logging implementations: SLF4J is responsible for loading the implementation, referred to as

import org.apache.maven.model.Profile;

/**
 * Collects the output of the model builder.
 *
 * @deprecated use {@link org.apache.maven.api.services.ModelBuilder} instead
 */
@Deprecated(since = "4.0.0")
public interface ModelBuildingResult {

    /**
     * Gets the sequence of model identifiers that denote the lineage of models from which the effective model was

import java.io.Serializable;
import javax.annotation.CheckForNull;

/**
 * Utility class for converting between various ASCII case formats. Behavior is undefined for
 * non-ASCII input.
 *
 * @author Mike Bostock
 * @since 1.0
 */
@GwtCompatible
@ElementTypesAreNonnullByDefault
public enum CaseFormat {
  /** Hyphenated variable naming convention, e.g., "lower-hyphen". */
  LOWER_HYPHEN(CharMatcher.is('-'), "-") {
    @Override

 * All others can simply be copied from source to target to restore the locationTracker
 *
 * @since 4.0.0
 * @deprecated use {@link org.apache.maven.api.services.ModelBuilder} instead
 */
@Deprecated(since = "4.0.0")
class FileToRawModelMerger extends MavenMerger {

    @Override
    protected void mergeBuild_Extensions(