// Assert - verify inheritance chain
            assertTrue(msg instanceof samr.SamrConnect2, "Should extend SamrConnect2");
            assertTrue(msg instanceof DcerpcMessage, "Should extend DcerpcMessage");
            assertTrue(msg instanceof NdrObject, "Should extend NdrObject");
        }

        @Test
        @DisplayName("should inherit getOpnum method")
        void testGetOpnumMethod() {

This *path operation*-specific OpenAPI schema is normally generated automatically by **FastAPI**, but you can also extend it.

/// tip

This is a low level extension point.

If you only need to declare additional responses, a more convenient way to do it is with [Additional Responses in OpenAPI](additional-responses.md).

///

You can extend the OpenAPI schema for a *path operation* using the parameter `openapi_extra`.

        // Then
        verify(mockIterator).close();
    }

    @Test
    @DisplayName("Should extend Iterator and AutoCloseable")
    void testInterfaceInheritance() {
        // Then
        assertTrue(java.util.Iterator.class.isAssignableFrom(CloseableIterator.class));
        assertTrue(AutoCloseable.class.isAssignableFrom(CloseableIterator.class));
    }

- JavaDoc required for public APIs
- License headers required (Apache 2.0)

### Testing

- **Structure**: `src/test/java/org/codelibs/fess/crawler/`
- **Base class**: Extend `PlainTestCase` from UTFlute
- **Test Resources**: `src/test/resources/`
- **Coverage Goal**: >80% line coverage

### Contributing

1. Fork repo, create feature branch
2. Make focused commits with tests

/**
 * This class provides a skeletal implementation of {@link Graph}. It is recommended to extend this
 * class rather than implement {@link Graph} directly.
 *
 * @author James Sexton
 * @param <N> Node parameter type
 * @since 20.0
 */
public abstract class AbstractGraph<N> extends AbstractBaseGraph<N> implements Graph<N> {
  /** Constructor for use by subclasses. */
  public AbstractGraph() {}

 * limitations under the License.
 */
package okhttp3.internal.connection

import okhttp3.Call
import okhttp3.Connection
import okhttp3.Route
import okio.IOException

/**
 * Listener for connection events. Extend this class to monitor the new connections and closes.
 *
 * All event methods must execute fast, without external locking, cannot throw exceptions,
 * attempt to mutate the event parameters, or be reentrant back into the client.

/**
 * This class provides a skeletal implementation of the {@code Cache} interface to minimize the
 * effort required to implement this interface.
 *
 * <p>To implement a cache, the programmer needs only to extend this class and provide an
 * implementation for the {@link #get(Object)} and {@link #getIfPresent} methods. {@link
 * #getUnchecked}, {@link #get(Object, Callable)}, and {@link #getAll} are implemented in terms of

import org.mockito.junit.jupiter.MockitoExtension;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * Base test class providing common test infrastructure and utilities.
 * All test classes should extend this to ensure consistent test setup.
 */
@ExtendWith(MockitoExtension.class)
public abstract class BaseTest {

    protected final Logger logger = LoggerFactory.getLogger(getClass());

    @BeforeEach

        assertNull(exception.getCause(), "Default constructor should have null cause");
        assertTrue(exception instanceof RuntimeCIFSException, "Should extend RuntimeCIFSException");
        assertTrue(exception instanceof RuntimeException, "Should be a RuntimeException");
    }

    @Test
    @DisplayName("Message constructor should create exception with specified message")

    class InheritanceTests {

        @Test
        @DisplayName("DcerpcBind should extend DcerpcMessage")
        void testInheritance() {
            // Then
            assertTrue(bind instanceof DcerpcMessage, "Should extend DcerpcMessage");
            assertTrue(bind instanceof jcifs.dcerpc.ndr.NdrObject, "Should extend NdrObject");
            assertTrue(bind instanceof DcerpcConstants, "Should implement DcerpcConstants");