assertEquals("jar:jar", executionPlan.get(7).getMojoDescriptor().getFullGoalName());
    }

    @Test
    void testLifecyclePluginsRetrievalForDefaultLifecycle() throws Exception {
        List<Plugin> plugins = new ArrayList<>(lifecycleExecutor.getPluginsBoundByDefaultToAllLifecycles("jar"));

        assertThat(plugins.toString(), plugins, hasSize(9));
    }

        //
        // System scoped version which should
        //
        d.setScope(Artifact.SCOPE_SYSTEM);
        File file = new File(getBasedir(), "src/test/repository-system/maven-core-2.1.0.jar");
        assertTrue(file.exists());
        d.setSystemPath(file.getCanonicalPath());

        artifact = repositorySystem.createDependencyArtifact(d);

        //

        "test", "org.apache.maven.plugins:maven-surefire-plugin:" + SUREFIRE_PLUGIN_VERSION + ":test",
        "package",
                "org.apache.maven.plugins:maven-jar-plugin:" + JAR_PLUGIN_VERSION + ":jar,"
                        + "org.apache.maven.plugins:maven-plugin-plugin:" + PLUGIN_PLUGIN_VERSION
                        + ":addPluginArtifactMetadata",

     */
    public String getExtensionDescriptorLocation() {
        return "META-INF/maven/extension.xml";
    }

    /**
     * Extracts the extension descriptor (if any) from the specified JAR file.
     *
     * @param extensionJar The JAR file or directory to extract the descriptor from, must not be {@code null}.
     * @return The extracted descriptor or {@code null} if no descriptor was found.

 * </ul>
 *
 */
public interface ArtifactHandler {
    @Deprecated
    String ROLE = ArtifactHandler.class.getName();

    /**
     * Returns the file name extension of the artifact;
     * e.g. "jar", "pom", "xml", etc.
     *
     * @return the file extension
     */
    String getExtension();

    String getDirectory();

    /**

/**
 * Tests {@link ArtifactUtils}.
 *
 */
class ArtifactUtilsTest {

    private Artifact newArtifact(String aid) {
        return new DefaultArtifact("group", aid, VersionRange.createFromVersion("1.0"), "test", "jar", "tests", null);
    }

    @Test
    void testIsSnapshot() {
        assertFalse(ArtifactUtils.isSnapshot(null));
        assertFalse(ArtifactUtils.isSnapshot(""));

/**
 * Tests {@link ScopeArtifactFilter}.
 *
 */
class ScopeArtifactFilterTest {

    private Artifact newArtifact(String scope) {
        return new DefaultArtifact("g", "a", "1.0", scope, "jar", "", null);
    }

    @Test
    void testInclude_Compile() {
        ScopeArtifactFilter filter = new ScopeArtifactFilter(Artifact.SCOPE_COMPILE);

    @Test
    void test() throws Exception {
        Files.walkFileTree(Paths.get("target"), new SimpleFileVisitor<Path>() {
            Pattern mavenArtifactJar = Pattern.compile("maven-artifact-[\\d.]+(-SNAPSHOT)?\\.jar");

            @Override
            public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
                String filename = file.getFileName().toString();

                .getFile());

        lib.getArtifact().setFile(new File("lib.jar"));

        resolver.resolveProjectDependencies(
                war, scopesToCollect, scopesToResolve, session, aggregating, reactorArtifacts);

        assertEquals(
                new File("lib.jar"),
                war.getArtifactMap()
                        .get("org.apache.maven.its.mng6300:mng6300-lib")

        return new DefaultArtifact(
                plugin.getGroupId(),
                plugin.getArtifactId(),
                null,
                "jar",
                plugin.getVersion(),
                session.getArtifactTypeRegistry().get("maven-plugin"));
    }