if err != nil {
		t.Fatal(err)
	}
	if got.root() == nil {
		t.Log("cached folders:")
		for folder := range got.Cache {
			t.Log("folder:", folder)
		}
		t.Fatal("got nil root.")
	}

	// Test dirs
	want := []struct {
		path       string
		isNil      bool
		size, objs int
		oSizes     sizeHistogram

# Root logger option
log4j.rootLogger=INFO, stderr

# Direct log messages to stdout
log4j.appender.stderr.ImmediateFlush=true
log4j.appender.stderr=org.apache.log4j.ConsoleAppender
log4j.appender.stderr.Target=System.err
log4j.appender.stderr.layout=org.apache.log4j.PatternLayout
log4j.appender.stderr.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1}:%L - %m%n


log4j.logger.jcifs: INFO
#log4j.logger.jcifs.internal.smb2.create: DEBUG

        }
        if (logger.isDebugEnabled()) {
            logger.debug("Loaded {}", name);
        }
        dataStoreMap.put(name.toLowerCase(Locale.ROOT), dataStore);
        dataStoreMap.put(dataStore.getClass().getSimpleName().toLowerCase(Locale.ROOT), dataStore);
    }

    /**
     * Retrieves a data store instance by name.
     * The lookup is case-insensitive and will match both registered names

        assertNull(exception.getCause());
    }

    public void test_constructor_withNestedCause() {
        // Test constructor with nested exception causes
        Throwable rootCause = new IllegalArgumentException("Root cause");
        Throwable middleCause = new IllegalStateException("Middle cause", rootCause);
        String message = "Command execution failed with nested exception";

    peer.acceptFrame() // ACK
    peer.acceptFrame() // SYN_STREAM
    peer.acceptFrame() // DATA
    peer.sendFrame().headers(false, 3, headerEntries("a", "android"))
    peer.sendFrame().data(true, 3, Buffer().writeUtf8("robot"), 5)
    peer.acceptFrame() // PING
    peer.sendFrame().ping(true, Http2Connection.AWAIT_PING, 0) // PING
    peer.play()

    // Play it back.
    val connection = connect(peer)

import jakarta.annotation.PostConstruct;
import jakarta.annotation.PreDestroy;

/**
 * Helper class for managing crawler statistics and performance metrics.
 * This class provides functionality to track, record, and report statistics
 * about crawler operations including timing data, performance metrics, and
 * operational events. It uses an internal cache to maintain statistics
 * objects and provides methods to begin tracking, record events, and

 *   <li>It doesn't offer a way to wait for multiple events before taking action. For example, it
 *       doesn't offer a way to wait for multiple producers to all report that they're "ready," nor
 *       does it offer a way to batch multiple events from a single producer together.
 *   <li>It doesn't support backpressure and other features needed for resilience.

 */
@GwtCompatible
final class Platform {

  /** Format the template with args, only supports the placeholder {@code %s}. */
  static String format(String template, Object... args) {
    return String.format(Locale.ROOT, template, args);
  }

  /** See {@link ListListIteratorTester} */
  static int listListIteratorTesterNumIterations() {
    return 4;
  }

  /** See {@link CollectionIteratorTester} */

            return path.substring(0, extPos);
        }
        return path;
    }

    /**
     * Returns the root directory where the class file of the specified class is located.
     *
     * @param clazz
     *            The class. Must not be {@literal null}.
     * @return The root directory.
     * @see #getBuildDir(String)
     */
    public static File getBuildDir(final Class<?> clazz) {

   */
  @SuppressWarnings("unchecked")
  public static <T extends @Nullable Object> Collector<T, ?, T> onlyElement() {
    return (Collector) ONLY_ELEMENT;
  }

  /**
   * This atrocity is here to let us report several of the elements in the stream if there were more
   * than one, not just two.
   */
  @SuppressWarnings("EmptyList") // ImmutableList doesn't support nullable element types
  private static final class ToOptionalState {