* @since 11.0
 */
@GwtCompatible
@FunctionalInterface
public interface Weigher<K, V> {

  /**
   * Returns the weight of a cache entry. There is no unit for entry weights; rather they are simply
   * relative to each other.
   *
   * @return the weight of the entry; must be non-negative
   */
  int weigh(K key, V value);

import java.util.List;

import org.eclipse.aether.RepositorySystemSession;
import org.eclipse.aether.artifact.Artifact;
import org.eclipse.aether.impl.ArtifactResolver;
import org.eclipse.aether.repository.RemoteRepository;
import org.eclipse.aether.resolution.ArtifactRequest;
import org.eclipse.aether.resolution.ArtifactResolutionException;
import org.eclipse.aether.resolution.ArtifactResult;

import org.eclipse.aether.impl.MetadataGenerator;
import org.eclipse.aether.installation.InstallRequest;
import org.eclipse.aether.metadata.Metadata;
import org.eclipse.aether.util.ConfigUtils;

/**
 * Maven local GAV level metadata generator.
 * <p>
 * Local snapshot metadata contains non-transformed snapshot version.
 *
 * @deprecated since 4.0.0, use {@code maven-api-impl} jar instead
 */
@Deprecated(since = "4.0.0")

 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.repository.internal;

import org.apache.maven.model.Model;
import org.eclipse.aether.RepositorySystemSession;
import org.eclipse.aether.artifact.Artifact;
import org.eclipse.aether.resolution.ArtifactDescriptorException;

 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.cli.transfer;

import java.io.File;

import org.eclipse.aether.DefaultRepositorySystemSession;
import org.eclipse.aether.RepositorySystemSession;
import org.eclipse.aether.transfer.TransferCancelledException;

 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.repository.internal;

import javax.inject.Named;
import javax.inject.Provider;
import javax.inject.Singleton;

import org.eclipse.aether.util.version.GenericVersionScheme;

## What we expect from contributors

1. **Understand the content you submit, PRs as well as issues, and be able to explain it.** Our goal is for humans to use AI tools intentionally and with full control, rather than merely serving as proxies for AI agents. If you cannot explain the reason for something, we will assume you do not understand it, and the PR or issue will likely be closed.

import org.apache.maven.execution.MavenExecutionRequest;
import org.apache.maven.settings.Mirror;
import org.eclipse.aether.repository.AuthenticationContext;
import org.eclipse.aether.repository.AuthenticationSelector;
import org.eclipse.aether.repository.MirrorSelector;
import org.eclipse.aether.repository.ProxySelector;
import org.eclipse.aether.repository.RemoteRepository;

/**
 * Extender that fills in legacy bits (using legacy code).
 *

 * Note: To cope with future extensions to this interface, it is strongly recommended to extend
 * {@link AbstractModelBuildingListener} rather than to directly implement this interface.
 *
 * @deprecated use {@code org.apache.maven.api.services.ModelBuilder} instead
 */
@Deprecated(since = "4.0.0")
public interface ModelBuildingListener {

    /**

import org.eclipse.aether.impl.scope.BuildScopeMatrixSource;
import org.eclipse.aether.impl.scope.BuildScopeSource;
import org.eclipse.aether.impl.scope.CommonBuilds;
import org.eclipse.aether.impl.scope.InternalScopeManager;
import org.eclipse.aether.impl.scope.ScopeManagerConfiguration;
import org.eclipse.aether.internal.impl.scope.ScopeManagerDump;

import static org.eclipse.aether.impl.scope.BuildScopeQuery.all;