assertArgumentNotNull("rootDir", rootDir);
        assertArgumentNotNull("handler", handler);

        forEach(rootDir, null, handler);
    }

    /**
     * Traverses classes contained in the file system.
     *
     * @param rootDir the root directory (must not be {@literal null})
     * @param rootPackage the root package
     * @param handler the handler to process classes (must not be {@literal null})

        assertEquals(0, tree.connectionState);
    }

    @Test
    void testSend() throws SmbException {
        SmbTree tree = new SmbTree(session, "testShare", "A:");
        tree.connectionState = 2; // Connected state
        tree.tid = 123;

        // Create real request and response objects since they're not interfaces
        ServerMessageBlock request = new SmbComOpenAndX("testfile.txt", 0x01, 0, null);

        smbClient.setInitParameterMap(params);
        smbClient.init();

        boolean connected = false;
        for (int i = 0; i < 30; i++) {
            try {
                smbClient.doGet(baseUrl);
            } catch (final ChildUrlsException e) {
                connected = true;
                break;
            } catch (final Exception e) {

		}

		scanFolder := func(folder cachedFolder) {
			if contextCanceled(ctx) {
				return
			}
			dst := into
			if !into.Compacted {
				dst = &dataUsageEntry{Compacted: false}
			}
			if err := f.scanFolder(ctx, folder, dst); err != nil {
				return
			}
			if !into.Compacted {
				h := dataUsageHash(folder.name)
				into.addChild(h)
				// We scanned a folder, optionally send update.

    /**
     * Returns a Set view of the keys contained in this map.
     *
     * @return a set view of the keys contained in this map
     */
    @Override
    public Set<String> keySet() {
        return parent.keySet();
    }

    /**
     * Returns a Collection view of the values contained in this map.
     *
     * @return a collection view of the values contained in this map
     */
    @Override

	ObjSizes  sizeHistogram
	Compacted bool
}

//msgp:tuple dataUsageEntryV6
type dataUsageEntryV6 struct {
	Children dataUsageHashMap
	// These fields do no include any children.
	Size      int64
	Objects   uint64
	Versions  uint64 // Versions that are not delete markers.
	ObjSizes  sizeHistogram
	Compacted bool
}

type dataUsageEntryV7 struct {

 *
 * <p>See the Guava User Guide article on <a
 * href="https://github.com/google/guava/wiki/UsingAndAvoidingNullExplained#optional">using {@code
 * Optional}</a>.
 *
 * @param <T> the type of instance that can be contained. {@code Optional} is naturally covariant on
 *     this type, so it is safe to cast an {@code Optional<T>} to {@code Optional<S>} for any
 *     supertype {@code S} of {@code T}.
 * @author Kurt Alfred Kluever

 * @see TraversalUtil
 */
public abstract class ResourceTraversalUtil {

    /**
     * Do not instantiate.
     */
    protected ResourceTraversalUtil() {
    }

    /**
     * Traverses resources contained in the file system.
     *
     * @param rootDir the root directory (must not be {@literal null})
     * @param handler the handler to process resources (must not be {@literal null})
     */

 * <p>
 * For example:
 *
 * <pre>
 * &#064;Secured({ &quot;ROLE_USER&quot; })
 * public void create(Contact contact);
 *
 * &#064;Secured({ &quot;ROLE_USER&quot;, &quot;ROLE_ADMIN&quot; })
 * public void update(Contact contact);
 *
 * &#064;Secured({ &quot;ROLE_ADMIN&quot; })
 * public void delete(Contact contact);
 * </pre>
 */
@Target({ ElementType.METHOD, ElementType.TYPE })
@Retention(RetentionPolicy.RUNTIME)

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

/**
 * Simple test to verify that Plugin objects returned by MavenProject.getPlugin() are connected to the project model.
 * This test specifically verifies the fix for the <a href="https://github.com/apache/maven/pull/2530">issue</a> where
 * getPlugin() was returning disconnected Plugin objects.
 */