* under the License.
 */
package org.apache.maven.api.services.model;

import java.util.Properties;

import org.apache.maven.api.services.ModelBuilderRequest;

/**
 * Allows a fixed set of properties that are valid inside a version and that could be overwritten for example on the
 * commandline
 */
public interface ModelVersionProcessor {

    /**
     * @param property the property to check

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

import org.apache.maven.execution.MavenExecutionResult;

/**
 * Context that is fixed for the entire reactor build.
 *
 * @since 3.0
 *         NOTE: This class is not part of any public api and can be changed or deleted without prior notice.
 */
public class ReactorContext {

     * We also lock on a given project to forbid a forked lifecycle to be executed concurrently with the project.
     * TODO: ideally, the builder should take care of the ordering in a smarter way
     * TODO: and concurrency issues fixed with MNG-7157
     */
    private class ProjectLock implements AutoCloseable {
        final Lock acquiredAggregatorLock;
        final OwnerReentrantLock acquiredProjectLock;

                value = basedir + expression.substring(pathSeparator);
            }
        }

        /*
         * MNG-4312: We neither have reserved all of the above magic expressions nor is their set fixed/well-known (it
         * gets occasionally extended by newer Maven versions). This imposes the risk for existing plugins to
         * unintentionally use such a magic expression for an ordinary property. So here we check whether we

            throws ArtifactResolutionException, ArtifactNotFoundException {
        resolve(artifact, remoteRepositories, localRepository, null);
    }

    /**
     * ThreadCreator for creating daemon threads with fixed ThreadGroup-name.
     */
    @Deprecated
    static final class DaemonThreadCreator implements ThreadFactory {
        static final String THREADGROUP_NAME = "org.apache.maven.artifact.resolver.DefaultArtifactResolver";

         * new release), is NOT local to the currently built project. It may be reparable by updating given plugin
         * to new fixed version, or by dropping plugin use from currently built project.
         * <p>
         * Note: if a reactor build contains a plugin (with issues) and later that built plugin is used in build,

                }
            }
        }

        /*
         * MNG-4312: We neither have reserved all of the above magic expressions nor is their set fixed/well-known (it
         * gets occasionally extended by newer Maven versions). This imposes the risk for existing plugins to
         * unintentionally use such a magic expression for an ordinary property. So here we check whether we

import static java.util.Objects.requireNonNull;

/**
 * A class building reverse tree using {@link CollectStepData} trace data provided in {@link RepositoryEvent}
 * events fired during collection.
 *
 * @since 3.9.0
 */
class ReverseTreeRepositoryListener extends AbstractRepositoryListener {
    @Override
    public void artifactResolved(RepositoryEvent event) {

import org.eclipse.aether.RepositorySystemSession;
import org.eclipse.aether.artifact.Artifact;
import org.eclipse.aether.graph.Dependency;
import org.eclipse.aether.resolution.ArtifactDescriptorResult;

/**
 * Detects mixed Maven versions in plugins.
 *
 * @since 3.9.2
 */
@Singleton
@Named
class MavenMixedDependenciesValidator extends AbstractMavenPluginDependenciesValidator {

    @Inject

                if (parent == null) {
                    //
                    // At this point the DefaultModelBuildingListener has fired and it populates the
                    // remote repositories with those found in the pom.xml, along with the existing externally
                    // defined repositories.
                    //