Use `Objects.requireNonNull` statement or `Preconditions` rather than `assert` or `@SuppressWarning` annotation to suppress if possible.

For gradual adoption, enable checks project-by-project.
Do not rely on `@NullMarked` annotations.
Only enable checks for a project if all its dependencies have checks enabled, in order to avoid back-and-forth when refining the annotations.

        File f = getFileForClasspathResource(DIR + "project-with-scoped-dependencies.xml");

        MavenProject project = getProjectWithDependencies(f);

        Artifact artifact;

        assertNotNull(project, "Test project can't be null!");

        checkArtifactIdScope(project, "provided", "provided");
        checkArtifactIdScope(project, "test", "test");
        checkArtifactIdScope(project, "compile", "compile");

    <!-- Fixed date for reproducible build -->
    <project.build.outputTimestamp>1980-02-01T00:00:00Z</project.build.outputTimestamp>
  </properties>

  <build>
    <directory>${project.basedir}/target</directory>
    <outputDirectory>${project.build.directory}/classes</outputDirectory>
    <finalName>${project.artifactId}-${project.version}</finalName>
    <testOutputDirectory>${project.build.directory}/test-classes</testOutputDirectory>

                    </build>
                </project>
                """;

            Document moduleADoc = Document.of(moduleAPomXml);
            Document moduleBDoc = Document.of(moduleBPomXml);

            Map<Path, Document> pomMap = new HashMap<>();
            pomMap.put(Paths.get("project", "module-a", "pom.xml"), moduleADoc);
            pomMap.put(Paths.get("project", "module-b", "pom.xml"), moduleBDoc);

     *
     * @param project The project being summarized, must not be {@code null}.
     * @param execTime The exec time of the project in milliseconds.
     * @param wallTime The wall time of the project in milliseconds.
     */
    protected BuildSummary(MavenProject project, Duration execTime, Duration wallTime) {
        this.project = Objects.requireNonNull(project, "project cannot be null");

val Project.testSplitIncludeTestClasses: String
    get() = project.stringPropertyOrEmpty(TEST_SPLIT_INCLUDE_TEST_CLASSES)


val Project.testSplitExcludeTestClasses: String
    get() = project.stringPropertyOrEmpty(TEST_SPLIT_EXCLUDE_TEST_CLASSES)


val Project.testSplitOnlyTestGradleVersion: String
    get() = project.stringPropertyOrEmpty(TEST_SPLIT_ONLY_TEST_GRADLE_VERSION)

        super(message);
        this.project = project;
    }

    public LifecycleExecutionException(String message, MojoExecution execution, MavenProject project) {
        super(message);
        this.project = project;
    }

    public LifecycleExecutionException(String message, MojoExecution execution, MavenProject project, Throwable cause) {
        super(message, cause);

     */
    public BuildSuccess(MavenProject project, long time) {
        this(project, Duration.ofMillis(time));
    }

    /**
     * Creates a new build summary for the specified project.
     *
     * @param project The project being summarized, must not be {@code null}.
     * @param time The build time of the project in milliseconds.
     */
    public BuildSuccess(MavenProject project, Duration time) {

        MavenProject project = new MavenProject(model);

        assertEquals("test-group", project.getGroupId(), "groupId proto-inheritance failed.");
        assertEquals("real-artifact", project.getArtifactId(), "artifactId is masked.");
        assertEquals("1000", project.getVersion(), "version proto-inheritance failed.");

        // draw the NPE.
        project.getId();
    }

    @Test

        String key = "${project.artifactId} with version: ${project.version}";

        MavenProject project = createDefaultProject();
        project.setArtifactId("test");
        project.setVersion("1");

        ExpressionEvaluator ee = createExpressionEvaluator(project, new Properties());

        Object value = ee.evaluate(key);