// Try to get a Subject, but handle the case where JAAS may not be configured
        Subject first = orig.getSubject();
        // In test environments, getSubject() may return null if JAAS is not configured
        // This is acceptable behavior - the test should focus on the cloning logic

        // Clone and verify basic fields copied
        JAASAuthenticator copy = (JAASAuthenticator) orig.clone();

under the License. */ import org.apache.maven.plugin.AbstractMojo; /** * Does nothing. * * @goal test * @requiresDependencyRe test * * @author Benjamin Bentmann */ public class ItMojo extends AbstractMojo { public void execute() { } } META-INF/maven/org.apache.maven.plugins/maven-surefire-plugin/pom.xml 4.0.0 org.apache.maven.plugins maven-surefire-plugin 0.1 maven-plugin Maven Integration Test Plugin A test plugin to assist testing of Maven core. 2009 maven-core-it file:///${basedir}/repo true true...

			<version>2.2</version>
			<scope>test</scope>
		</dependency>
		<dependency>
			<groupId>org.mockito</groupId>
			<artifactId>mockito-core</artifactId>
			<version>5.11.0</version>
			<scope>test</scope>
		</dependency>
		<dependency>
			<groupId>org.testcontainers</groupId>
			<artifactId>testcontainers</artifactId>
			<version>1.21.3</version>
			<scope>test</scope>
		</dependency>
		<dependency>

import org.codelibs.core.exception.ClIndexOutOfBoundsException;
import org.codelibs.core.io.SerializeUtil;
import org.junit.Test;

/**
 * @author higa
 */
public class SLinkedListTest {

    private final SLinkedList<String> list = new SLinkedList<String>();

    /**
     * @throws Exception
     */
    @Test
    public void testGetFirstEntry() throws Exception {
        assertThat(list.getFirstEntry(), is(nullValue()));

    <dependencies>
      <dependency>
        <groupId>maven-test</groupId>
        <artifactId>t08-a</artifactId>
        <version>1.0</version>
      </dependency>
      <dependency>
        <groupId>maven-test</groupId>
        <artifactId>t08-b</artifactId>
        <version>1.1</version>
      </dependency>
      <dependency>
        <groupId>maven-test</groupId>
        <artifactId>t08-c</artifactId>

- JavaDoc required for public APIs
- License headers required

### Testing

**Structure**: `src/test/java/org/codelibs/fess/crawler/`
**Frameworks**: JUnit 4, UTFlute, Mockito, Testcontainers
**Test Resources**: `src/test/resources/`

**Pattern**:
```java
public class MyTest extends UTFlute {
    @Override
    protected void setUp() throws Exception {
        super.setUp();
        // Setup

import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.DisplayName;
import org.junit.jupiter.api.Test;
import org.mockito.Mock;

/**
 * Comprehensive test suite for BufferCache interface.
 * Tests the contract and behavior of BufferCache implementations.
 */
@DisplayName("BufferCache Interface Tests")
class BufferCacheTest extends BaseTest {

    @Mock
    private BufferCache mockBufferCache;

import org.junit.jupiter.api.Test;
import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.Arguments;
import org.junit.jupiter.params.provider.MethodSource;
import org.junit.jupiter.params.provider.ValueSource;

@DisplayName("NegTokenInit SPNEGO Token Tests")
class NegTokenInitTest {

    // Common OIDs used in tests

        }

        @Test
        @DisplayName("Should return 0 with null array")
        void testWriteBytesWireFormatWithNullArray() {
            // Given
            byte[] dst = null;

            // When
            int result = response.writeBytesWireFormat(dst, 0);

            // Then
            assertEquals(0, result);
        }

        @Test

    <dependencies>
      <dependency>
        <groupId>maven-test</groupId>
        <artifactId>t06-a</artifactId>
        <version>1.0</version>
      </dependency>
      <dependency>
        <groupId>maven-test</groupId>
        <artifactId>t06-b</artifactId>
        <version>1.1</version>
      </dependency>
      <dependency>
        <groupId>maven-test</groupId>
        <artifactId>t06-c</artifactId>