* @return file representing the tool executable, or null if the tool cannot be found
     */
    String findTool(String toolName);

    /**
     * Let the toolchain decide if it matches requirements defined
     * in the toolchain plugin configuration.
     * @param requirements Map<String, String> key value pair, may not be {@code null}

                .collect(Collectors.toList());

        if (!unversionedPlugins.isEmpty()) {
            logger.warn("Version not locked for default bindings plugins " + unversionedPlugins
                    + ", you should define versions in pluginManagement section of your " + "pom.xml or parent");
        }

        return executionPlan;
    }

    public void handleBuildError(
            final ReactorContext buildContext,

     */
    @Nonnull
    Map<String, Object> getPluginContext(@Nonnull Project project);

    /**
     * Retrieves the service for the interface
     *
     * @throws NoSuchElementException if the service could not be found
     */
    @Nonnull
    <T extends Service> T getService(@Nonnull Class<T> clazz);

    /**
     * Creates a derived session using the given local repository.
     *

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

import java.util.Set;

/**
 * @deprecated use {@code META-INF/maven/extension.xml} to define artifacts exported by Maven core extensions.
 */
@Deprecated
public interface ArtifactFilterManagerDelegate {

    void addExcludes(Set<String> excludes);

    void addCoreExcludes(Set<String> excludes);

/**
 * a private contract between the toolchains plugin and the components.
 */
public interface ToolchainPrivate extends Toolchain {

    /**
     * Let the toolchain decide if it matches requirements defined
     * in the toolchain plugin configuration.
     * @param requirements Map<String, String> key value pair, may not be {@code null}

@Deprecated
public interface ArtifactFilterManager {
    /**
     * Returns a filter for core + extension artifacts.
     *
     * @return the artifact filter
     * @deprecated use {@code META-INF/maven/extension.xml} to define artifacts exported by Maven core and plugin
     *             extensions.
     */
    ArtifactFilter getArtifactFilter();

    /**
     * Returns a filter for only the core artifacts.
     *

 * invocations of Maven.
 */
public interface BuildResumptionDataRepository {
    /**
     * Persists any data needed to resume the build at a later point in time, using a new Maven invocation. This method
     * may also decide it is not needed or meaningful to persist such data, and return <code>false</code> to indicate
     * so.
     *
     * @param rootProject The root project that is being built.

            ArtifactRepositoryPolicy releases) {
        this.id = id;
        this.url = url;
        this.layout = layout;
        this.snapshots = snapshots;
        this.releases = releases;
        //
        // Derive these from the URL
        //
        this.protocol = protocol(url);
        this.basedir = basedir(url);
    }

    public String pathOf(Artifact artifact) {
        return layout.pathOf(artifact);
    }

 * under the License.
 */
package org.apache.maven.repository.metadata;

import org.apache.maven.artifact.ArtifactScopeEnum;

/**
 * metadata graph edge - combination of version, scope and depth define
 * an edge in the graph
 *
 *
 */
@Deprecated
public class MetadataGraphEdge {
    String version;
    ArtifactScopeEnum scope;
    int depth = -1;
    int pomOrder = -1;
    boolean resolved = true;

                        + "stub-plugin-test, "
                        + "stub-plugin-package, "
                        + "stub-plugin-install], "
                        + "you should define versions in pluginManagement section of your pom.xml or parent");
    }

    @Test
    void testHandleBuildError() throws Exception {}

    @Test
    void testAttachToThread() throws Exception {}

    @Test