* @throws NullPointerException if both {@code first} and {@code second} are null
   * @since 18.0 (since 3.0 as {@code Objects.firstNonNull()}).
   */
  public static <T> T firstNonNull(@Nullable T first, @Nullable T second) {
    if (first != null) {
      return first;
    }
    if (second != null) {
      return second;
    }
    throw new NullPointerException("Both parameters are null");

      return certificates.single() as X509Certificate
    } catch (e: NoSuchElementException) {
      throw IllegalArgumentException("failed to decode certificate", e)
    } catch (e: IllegalArgumentException) {
      throw IllegalArgumentException("failed to decode certificate", e)
    } catch (e: GeneralSecurityException) {
      throw IllegalArgumentException("failed to decode certificate", e)
    }
  }
}

 */
public abstract class QueryTestBase extends UnitFessTestCase {

    protected QueryProcessor queryProcessor;

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

        // Setup FessConfig with proper initialization
        setupBaseFessConfig();

        // Initialize QueryFieldConfig

    }

    /** {@inheritDoc} */
    @Override
    public ArtifactVersion getSelectedVersion() throws OverConstrainedVersionException {
        return artifact.getSelectedVersion();
    }

    /** {@inheritDoc} */
    @Override
    public boolean isSelectedVersionKnown() throws OverConstrainedVersionException {
        return artifact.isSelectedVersionKnown();
    }

    /** {@inheritDoc} */

        // Test execute method with negative boost - should throw exception
        QueryContext context = new QueryContext("*:*", false);
        MatchAllDocsQuery query = new MatchAllDocsQuery();
        float boost = -1.0f;

        try {
            matchAllQueryCommand.execute(context, query, boost);
            fail("Should throw IllegalArgumentException for negative boost");

import org.codelibs.fess.unit.UnitFessTestCase;
import org.codelibs.fess.util.DocumentUtil;

public class OpenIdConnectAuthenticatorTest extends UnitFessTestCase {
    public void test_parseJwtClaim() throws IOException {
        // Setup
        OpenIdConnectAuthenticator authenticator = new OpenIdConnectAuthenticator();
        final Map<String, Object> attributes = new HashMap<>();
        String jwtClaim =

/** Handler for mock server requests. */
public abstract class Dispatcher : Closeable {
  /**
   * Returns a response to satisfy `request`. This method may block (for instance, to wait on
   * a CountdownLatch).
   */
  @Throws(InterruptedException::class)
  public abstract fun dispatch(request: RecordedRequest): MockResponse

  /**
   * Returns an early guess of the next response, used for policy on how an incoming request should

import java.util.Scanner;

import org.junit.jupiter.api.Test;

import static org.junit.jupiter.api.Assertions.assertEquals;

class StringSourceTest {
    @Test
    void testGetInputStream() throws Exception {
        StringSource source = new StringSource("Hello World!");

        try (InputStream is = source.getInputStream();
                Scanner scanner = new Scanner(is)) {

    private static final Logger logger = LogManager.getLogger(MsExcelExtractorTest.class);

    public MsExcelExtractor msExcelExtractor;

    @Override
    protected void setUp() throws Exception {
        super.setUp();
        StandardCrawlerContainer container = new StandardCrawlerContainer().singleton("msExcelExtractor", MsExcelExtractor.class);

    private static final Logger logger = LogManager.getLogger(MsPowerPointExtractorTest.class);

    public MsPowerPointExtractor msPowerPointExtractor;

    @Override
    protected void setUp() throws Exception {
        super.setUp();
        StandardCrawlerContainer container = new StandardCrawlerContainer().singleton("msPowerPointExtractor", MsPowerPointExtractor.class);