import javax.annotation.CheckForNull;

/**
 * Weak reference with a {@code finalizeReferent()} method which a background thread invokes after
 * 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>

 */
package org.apache.maven.model.path;

/**
 * Normalizes a URL to remove the ugly parent references "../" that got potentially inserted by URL adjustment during
 * model inheritance.
 *
 * @deprecated use {@link org.apache.maven.api.services.ModelBuilder} instead
 */
@Deprecated(since = "4.0.0")
public interface UrlNormalizer {

    /**
     * Normalizes the specified URL.
     *

 * under the License.
 */
package org.apache.maven.toolchain.merge;

import org.apache.maven.toolchain.model.PersistedToolchains;

/**
 *
 * @since 3.2.4
 * @deprecated since 4.0.0, use {@link org.apache.maven.toolchain.v4.MavenToolchainsMerger} instead
 */
@Deprecated(since = "4.0.0")
public class MavenToolchainMerger {

    validations:
      required: false
  - type: input
    id: page
    attributes:
      label: Page with the problem
      description: Please, provide a link to the relevant documentation page
    validations:

import java.util.Iterator;
import java.util.Map.Entry;
import org.junit.Ignore;

/**
 * A generic JUnit test which tests {@code clear()} operations on a map. Can't be invoked directly;
 * please see {@link com.google.common.collect.testing.MapTestSuiteBuilder}.
 *
 * @author George van den Driessche
 * @author Chris Povirk
 */
@GwtCompatible

import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;
import org.junit.Ignore;

/**
 * A generic JUnit test which tests {@code toString()} operations on a map. Can't be invoked
 * directly; please see {@link com.google.common.collect.testing.MapTestSuiteBuilder}.
 *
 * @author Kevin Bourrillion
 * @author Louis Wasserman
 */
@GwtCompatible

import java.util.HashMap;
import java.util.HashSet;
import java.util.LinkedHashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.Set;

/**
 * @deprecated use {@link org.apache.maven.api.services.ModelBuilder} instead
 */
@Deprecated(since = "4.0.0")
class Graph {

    final Map<String, Set<String>> graph = new LinkedHashMap<>();

import org.apache.maven.settings.Settings;
import org.apache.maven.settings.v4.SettingsStaxReader;

/**
 * Handles deserialization of settings from the default textual format.
 *
 * @deprecated since 4.0.0, use {@link SettingsStaxReader} instead
 */
@Named
@Singleton
@Deprecated(since = "4.0.0")
public class DefaultSettingsReader implements SettingsReader {

    @Override

import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.apache.maven.settings.IdentifiableBase;
import org.apache.maven.settings.Settings;

/**
 * @deprecated since 4.0.0, use {@link org.apache.maven.settings.v4.SettingsMerger} instead
 */
@Deprecated(since = "4.0.0")
public class MavenSettingsMerger {

    /**
     * @param dominant
     * @param recessive
     * @param recessiveSourceLevel

 *
 * <p>The {@code newArrayList(E[])} method of all implementations of {@code ListFactory} is expected
 * to return a value with a GWT serializable type.
 *
 * <p>Note that a {@code GwtCompatible} type may have some {@link GwtIncompatible} methods.
 *
 * @author Charles Fry
 * @author Hayward Chan
 */
@Retention(RetentionPolicy.CLASS)
@Target({ElementType.TYPE, ElementType.METHOD})
@Documented
@GwtCompatible