String sessionId = "test_session_buffer";
        List<String> cmdList = Arrays.asList("echo", "hello world");
        Consumer<ProcessBuilder> pbCall = pb -> {
            pb.redirectErrorStream(true);
        };

        List<String> outputs = new ArrayList<>();
        Consumer<String> outputCallback = output -> outputs.add(output);

        try {

            fail("Should throw NullPointerException for null consumer");
        } catch (NullPointerException e) {
            // Expected behavior
        }
    }

    public void test_processThreadDump_multipleThreads() {
        AtomicInteger threadCount = new AtomicInteger(0);
        AtomicInteger stackTraceCount = new AtomicInteger(0);

        Consumer<String> countingConsumer = line -> {

     *
     * @param actionListener the action listener for handling the response
     * @param exceptionListener the exception listener for handling exceptions
     */
    public void connect(final Consumer<HttpURLConnection> actionListener, final Consumer<Exception> exceptionListener) {
        final Runnable task = () -> {
            if (paramList != null) {
                char sp;
                if (url.indexOf('?') == -1) {

    }

    /**
     * Processes thumbnail generation with a consumer function.
     * @param id The document ID.
     * @param consumer The consumer function to process thumbnail and config ID.
     * @return True if processing was successful, false otherwise.
     */
    protected boolean process(final String id, final BiPredicate<String, String> consumer) {
        final FessConfig fessConfig = ComponentUtil.getFessConfig();

          GeneralSpliterator<E> spliterator, Consumer<? super E> consumer) {
        spliterator.forEachRemaining(consumer);
      }
    },
    NO_SPLIT_TRY_ADVANCE {
      @Override
      <E extends @Nullable Object> void forEach(
          GeneralSpliterator<E> spliterator, Consumer<? super E> consumer) {
        while (spliterator.tryAdvance(consumer)) {
          // do nothing
        }
      }
    },

          GeneralSpliterator<E> spliterator, Consumer<? super E> consumer) {
        spliterator.forEachRemaining(consumer);
      }
    },
    NO_SPLIT_TRY_ADVANCE {
      @Override
      <E extends @Nullable Object> void forEach(
          GeneralSpliterator<E> spliterator, Consumer<? super E> consumer) {
        while (spliterator.tryAdvance(consumer)) {
          // do nothing
        }
      }
    },

     *
     * @param src The source Bean. Must not be {@literal null}.
     * @param dest The destination Bean. Must not be {@literal null}.
     * @param option The consumer for copy options.
     */
    public static void copyBeanToBean(final Object src, final Object dest, final Consumer<CopyOptions> option) {
        copyBeanToBean(src, dest, buildCopyOptions(option));
    }

    /**
     * Copies properties from one Bean to another Bean.

      Stream<A> streamA, Stream<B> streamB, BiConsumer<? super A, ? super B> consumer) {
    checkNotNull(consumer);

    if (streamA.isParallel() || streamB.isParallel()) {
      zip(streamA, streamB, TemporaryPair::new).forEach(pair -> consumer.accept(pair.a, pair.b));
    } else {
      Iterator<A> iterA = streamA.iterator();

     * @param initializer the initializer consumer for the component
     * @param destroyer the destroyer consumer for the component
     * @return this container instance for method chaining
     */
    public <T> StandardCrawlerContainer singleton(final String name, final Class<T> cls, final Consumer<T> initializer,
            final Consumer<T> destroyer) {

import java.nio.charset.StandardCharsets;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import java.util.function.Consumer;

import org.codelibs.fess.unit.UnitFessTestCase;

public class InputStreamThreadTest extends UnitFessTestCase {

    public void test_constructor() {
        String input = "test line";