return Stream.of(Arguments.of((String) null), Arguments.of(""), Arguments.of("unexpected downgrade"));
    }

    @Test
    @DisplayName("Default ctor: null message/cause; toString is class name; type hierarchy")
    void defaultConstructor_hasNullMessageAndCause_andTypeHierarchy() {
        // Arrange & Act
        SMBProtocolDowngradeException ex = new SMBProtocolDowngradeException();

  private interface HierarchyFixtureInterface {
    // Exists only for hierarchy mapping; no members.
  }

  private interface HierarchyFixtureSubinterface extends HierarchyFixtureInterface {
    // Exists only for hierarchy mapping; no members.
  }

  private static class HierarchyFixtureParent implements HierarchyFixtureSubinterface {
    // Exists only for hierarchy mapping; no members.
  }

        assertTrue(queryParseException instanceof java.io.Serializable);
    }

    @Test
    public void test_inheritanceHierarchy() {
        // Test the inheritance hierarchy
        ParseException parseException = new ParseException("Hierarchy test");
        QueryParseException queryParseException = new QueryParseException(parseException);

        // Verify inheritance chain

     *
     * @return The parent directory of this SMB resource or
     *         <code>smb://</code> if the resource refers to the root of the URL
     *         hierarchy which incidentally is also <code>smb://</code>.
     */
    String getParent();

    /**
     * Returns the full uncanonicalized URL of this SMB resource. An

import static eu.maveniverse.domtrip.maven.MavenPomElements.Files.POM_XML;

/**
 * Discovers and loads Maven POM files in a Maven project hierarchy.
 *
 * <p>This class recursively discovers all POM files in a Maven project hierarchy
 * and loads them as domtrip Documents. Individual strategies can create domtrip Editors
 * from these Documents as needed for superior formatting preservation.
 */

    class SerializationTests {

        @Test
        @DisplayName("Should maintain exception hierarchy")
        void testExceptionHierarchy() {
            TransportException exception = new TransportException("Test");

            // Verify the exception hierarchy
            assertTrue(exception instanceof IOException);
            assertTrue(exception instanceof Exception);

            method.setAccessible(true); // Required to invoke protected method
            assertEquals(443, method.invoke(testHandler));
        }

        @Test
        @DisplayName("Should maintain inheritance hierarchy")
        void testInheritanceHierarchy() {
            // When
            Class<?> superclass = Handler.class.getSuperclass();

            // Then
            assertEquals(jcifs.http.Handler.class, superclass);

  @Override
  protected void setUp() throws Exception {
    super.setUp();

    handler = new TestLogHandler();

    // You could also apply it higher up the Logger hierarchy than this
    ExampleClassUnderTest.logger.addHandler(handler);

    ExampleClassUnderTest.logger.setUseParentHandlers(false); // optional

    stack.addTearDown(
        () -> {

        if (superClassName != null && !superClassName.equals("org.gradle.api.DefaultTask")) {
            // Assume this is a class and so has implemented all properties and methods somewhere in the superclass hierarchy
            ClassDoc superClass = model.getClassDoc(superClassName);
            classDoc.setSuperClass(superClass);
            superClass.addSubClass(classDoc);
        }

  @Override
  protected void setUp() throws Exception {
    super.setUp();

    handler = new TestLogHandler();

    // You could also apply it higher up the Logger hierarchy than this
    ExampleClassUnderTest.logger.addHandler(handler);

    ExampleClassUnderTest.logger.setUseParentHandlers(false); // optional

    stack.addTearDown(
        () -> {