the Maven Repository Metadata file contains 3 different sets of metadata:

 [[1]] in a "groupId" directory: a "groupId" directory may contain Maven plugins artifacts, which are described in metadata's <<<plugins>>> element,

 [[2]] in a "groupId/artifactId" directory: metadata describes <<<groupId>>>, <<<artifactId>>> and <<<versioning>>> element that
       gives data about available versions (<<<latest>>>, <<<release>>>, <<<versions>>> list and <<<lastUpdated>>>),

 */
package org.codelibs.core.timer;

/**
 * This is an interface for handling timeouts.
 *
 * @author higa
 *
 */
@FunctionalInterface
public interface TimeoutTarget {

    /**
     * Describes the processing for a timeout.
     */
    void expired();

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

/**
 * Describes a problem that was encountered during model building. A problem can either be an exception that was thrown
 * or a simple string message. In addition, a problem carries a hint about its source, e.g. the POM file that exhibits

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

/**
 * Describes a problem that was encountered during settings building. A problem can either be an exception that was
 * thrown or a simple string message. In addition, a problem carries a hint about its source, e.g. the settings file

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

/**
 * Describes whether a target should be activated or not, and if that is required or optional.
 *
 * @param active Should the target be active?
 * @param optional Should the build continue if the target is not present?

 * under the License.
 */
package org.apache.maven.plugin.version.internal;

import org.apache.maven.plugin.version.PluginVersionResult;
import org.eclipse.aether.repository.ArtifactRepository;

/**
 * Describes the result of a plugin version resolution request.
 *
 * @since 3.0
 */
class DefaultPluginVersionResult implements PluginVersionResult {

    private String version;

    private ArtifactRepository repository;

package org.apache.maven.plugin.prefix.internal;

import org.apache.maven.model.Plugin;
import org.apache.maven.plugin.prefix.PluginPrefixResult;
import org.eclipse.aether.repository.ArtifactRepository;

/**
 * Describes the result of a plugin prefix resolution request.
 *
 * @since 3.0
 */
class DefaultPluginPrefixResult implements PluginPrefixResult {

    private String groupId;

    private String artifactId;

          <name>licenses</name>
          <version>3.0.0+</version>
          <description>
            <![CDATA[
            This element describes all the licenses for this project.
            Each license is described by a {@code license} element, which
            is then described by additional elements.
            Projects should only list the license(s) that applies to the project

import org.codehaus.plexus.personality.plexus.lifecycle.phase.Initializable;
import org.codehaus.plexus.personality.plexus.lifecycle.phase.InitializationException;

/**
 * Describes runtime information about the application.
 *
 */
@Deprecated
@Named
@Singleton
public class DefaultRuntimeInformation implements RuntimeInformation, Initializable {

    @Inject

import org.apache.maven.artifact.repository.metadata.Versioning;
import org.apache.maven.artifact.resolver.ArtifactNotFoundException;
import org.apache.maven.artifact.resolver.ArtifactResolutionException;

/**
 * Describes a version transformation during artifact resolution - "latest" type
 */
@Named("latest")
@Singleton
@Deprecated
public class LatestArtifactTransformation extends AbstractVersionTransformation {

    @Override