})

	got, err := scanDataFolder(t.Context(), nil, &xls, dataUsageCache{Info: dataUsageCacheInfo{Name: "bucket"}}, getSize, 0, weSleep)
	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

            return OptionalThing.empty();
        }
        return OptionalThing.of(pipeline);
    }

    /**
     * Refreshes the crawling configuration cache by invalidating all cached entries.
     * This forces the next access to reload configurations from the underlying services.
     */
    public void refresh() {
        crawlingConfigCache.invalidateAll();
    }

    /**

     */
    public static final int FILE_WRITE_THROUGH = 0x2;
    /**
     * Access to the file is sequential only
     */
    public static final int FILE_SEQUENTIAL_ONLY = 0x4;
    /**
     * File cannot be cached or buffered at intermediate levels
     */
    public static final int FILE_NO_IMTERMEDIATE_BUFFERING = 0x8;
    /**
     * All operations on the file are performed synchronously with alerts
     */

=== ":material-language-kotlin: Kotlin"
    ```kotlin

    /** Factory for creating crawler clients to handle different URL schemes. */
    protected CrawlerClientFactory crawlerClientFactory;

    /** List of URLs to be deleted, cached for batch processing. */
    protected List<String> deleteUrlList = new ArrayList<>(100);

    /** Maximum size of the delete URL cache before batch deletion is triggered. */
    protected int maxDeleteDocumentCacheSize;

     * be output to the latest value referenced by System.out/err variables. By setting this parameter to true,
     * the output stream will be cached, i.e. assigned once at initialization time and re-used independently of
     * the current value referenced by System.out/err.
     *
     * @since 4.0.0
     */

    }
  }

  /**
   * On a concurrent computation that returns null, all threads should get an
   * InvalidCacheLoadException, with the loader only called once. The result should not be cached (a
   * later request should call the loader again).
   */
  private static void testConcurrentLoadingNull(CacheBuilder<Object, Object> builder)
      throws InterruptedException {

    int count = 10;

					})
				}
				gotSelected, gotOk := tt.m.resolve(&tt.r)
				if gotOk != tt.wantOk {
					t.Errorf("resolve() gotOk = %v, want %v", gotOk, tt.wantOk)
				}
				if gotSelected != nil {
					gotSelected.cached = nil
					gotSelected.reusable = false
				}
				if !reflect.DeepEqual(gotSelected, tt.wantSelected) {
					wantM, _ := tt.wantSelected.xlmeta()
					gotM, _ := gotSelected.xlmeta()

        } catch (_: IOException) {
          // Nothing useful to do here. We failed to remove from the cache. Most likely that's
          // because we couldn't update the journal, but the cached entry will still be gone.
        } finally {
          this.removeSnapshot = null
        }
      }
    }
  }

  /** A snapshot of the values for an entry. */

    /** The client challenge for NTLM authentication */
    private byte[] clientChallenge = null;
    /** Session ID for secure key management */
    private String sessionId = null;
    /** Time-to-live for cached authentication in milliseconds */
    private long authenticationTTL = 3600000L; // 1 hour default
    /** Timestamp when the authentication was created */
    private long authenticationTimestamp = System.currentTimeMillis();