*/
    public static final String OS_NAME = System.getProperty("os.name").toLowerCase(Locale.ENGLISH);

    /**
     * The OA architecture.
     */
    public static final String OS_ARCH = System.getProperty("os.arch").toLowerCase(Locale.ENGLISH);

    /**
     * The OS version.
     */
    public static final String OS_VERSION = System.getProperty("os.version").toLowerCase(Locale.ENGLISH);

    /**

                clone.getActivation().getFile().getMissing());
        assertEquals(
                p.getActivation().getProperty().getName(),
                clone.getActivation().getProperty().getName());
        assertEquals(
                p.getActivation().getProperty().getValue(),
                clone.getActivation().getProperty().getValue());
        assertEquals(
                p.getActivation().getOs().getArch(),

        Activation activation = profile.getActivation();

        if (activation == null) {
            return false;
        }

        ActivationProperty property = activation.getProperty();

        if (property == null) {
            return false;
        }

        String name = property.getName();
        boolean reverseName = false;

        if (name != null && name.startsWith("!")) {

                // a parameter.

                value = properties.getProperty(expression);
            }

            if ((value == null) && ((project != null) && (project.getProperties() != null))) {
                value = project.getProperties().getProperty(expression);
            }
        }

        if (value instanceof String) {

    @Override
    public boolean traverseDependency(Dependency dependency) {
        requireNonNull(dependency, "dependency cannot be null");
        String prop = dependency.getArtifact().getProperty(MavenArtifactProperties.INCLUDES_DEPENDENCIES, "");
        return !Boolean.parseBoolean(prop);
    }

    @Override
    public DependencyTraverser deriveChildTraverser(DependencyCollectionContext context) {

        assertEquals(System.getProperty("user.dir"), value);
    }

    @Test
    void testValueExtractionFromSystemPropertiesWithMissingProject() throws Exception {
        String sysprop = "PPEET_sysprop1";

        Properties executionProperties = new Properties();

        if (executionProperties.getProperty(sysprop) == null) {
            executionProperties.setProperty(sysprop, "value");
        }

        Model childModel = new Model();
        childModel.setArtifactId("artifact");

        MavenProject childProject = new MavenProject(childModel);

        File childFile = new File(
                System.getProperty("java.io.tmpdir"),
                "maven-project-tests" + System.currentTimeMillis() + "/child/pom.xml");

        childProject.setFile(childFile);

                new File(System.getProperty("basedir", "."), "target/local-repo").getAbsoluteFile());
    }

    public ArtifactRepository createDefaultRemoteRepository() throws InvalidRepositoryException {
        return new MavenArtifactRepository(
                DEFAULT_REMOTE_REPO_ID,
                "file://"
                        + new File(System.getProperty("basedir", "."), "src/test/remote-repo")

        versioning.versions(List.of(artifact.getBaseVersion()));
        if (!artifact.isSnapshot()) {
            versioning.release(artifact.getBaseVersion());
        }
        if ("maven-plugin".equals(artifact.getProperty(ArtifactProperties.TYPE, ""))) {
            versioning.latest(artifact.getBaseVersion());
        }

        metadata.versioning(versioning.build());

        return metadata.build();
    }

    @Override

import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertTrue;

@Deprecated
public class TestFileManager {

    public static final String TEMP_DIR_PATH = System.getProperty("java.io.tmpdir");

    private List<File> filesToDelete = new ArrayList<>();

    private final String baseFilename;

    private final String fileSuffix;

    private StackTraceElement callerInfo;