* {@link CacheLoader#load} calls to {@code loader}.
   */
  static <K, V> CacheLoader<K, V> bulkLoader(CacheLoader<K, V> loader) {
    checkNotNull(loader);
    return new CacheLoader<K, V>() {
      @Override
      public V load(K key) throws Exception {
        return loader.load(key);
      }

      @Override

   *       CacheLoader#loadAll bulk loading implementations}
   * </ul>
   *
   * <p><b>Warning:</b> For any given key, every {@code loader} used with it should compute the same
   * value. Otherwise, a call that passes one {@code loader} may return the result of another call
   * with a differently behaving {@code loader}. For example, a call that requests a short timeout
   * for an RPC may wait for a similar call that requests a long timeout, or a call by an

   *
   * This means that dynamically loaded web applications and OSGi bundles can't be unloaded.
   *
   * If the library is loaded in an application class loader, we try to break the cycle by loading
   * Finalizer in its own independent class loader:
   *
   * System class loader -> Application class loader -> ReferenceMap -> FinalizableReferenceQueue ->

          ImmutableSet.of(
              new ResourceInfo(FILE, "left/some.txt", loader),
              new ResourceInfo(FILE, "left/sibling/another.txt", loader),
              new ResourceInfo(FILE, "right/another.txt", loader),
              new ResourceInfo(FILE, "right/sibling/some.txt", loader)),
          new ClassPath.LocationInfo(root.toFile(), loader).scanResources());
    } finally {
      deleteRecursivelyOrLog(root);
    }

    assertThat(loader.getLoadCount()).isEqualTo(expectedLoads);
    assertThat(loader.getReloadCount()).isEqualTo(expectedReloads);

    ticker.advance(1, MILLISECONDS);
    assertThat(cache.getUnchecked(0)).isEqualTo(1);
    assertThat(cache.getUnchecked(1)).isEqualTo(-1);
    assertThat(cache.getUnchecked(2)).isEqualTo(3);
    assertThat(loader.getLoadCount()).isEqualTo(expectedLoads);

        assertArgumentNotNull("loader", loader);

        if (path == null || loader == null) {
            return null;
        }
        final String p = getResourcePath(path, extension);
        return loader.getResource(p);
    }

    /**
     * Returns the resource as a stream from the context class loader.
     *
     * @param path

// JoinBucketLoaders - joins multiple bucket loaders into a single loader,
// similar to `JoinLoaders`.
func JoinBucketLoaders(loaders ...BucketMetricsLoaderFn) BucketMetricsLoaderFn {
	return func(ctx context.Context, m MetricValues, c *metricsCache, b []string) error {
		for _, loader := range loaders {
			if err := loader(ctx, m, c, b); err != nil {
				return err
			}
		}
		return nil
	}

        };

    cache.put(0, 10);

    assertThat(cache.get(0, loader)).isEqualTo(10);
    assertThat(cache.get(20, loader)).isEqualTo(1);
    assertThat(cache.get(34, loader)).isEqualTo(2);

    cache.invalidate(0);
    assertThat(cache.get(0, loader)).isEqualTo(3);

    cache.put(0, 10);
    cache.invalidateAll();
    assertThat(cache.get(0, loader)).isEqualTo(4);
  }

  @Test
  public void sizeConstraint() {

            return new Object();
          }
        };
    LocalLoadingCache<Object, Object> cache = makeCache(createCacheBuilder(), loader);
    assertThat(cache.localCache.defaultLoader).isSameInstanceAs(loader);
  }

  // null parameters test

  public void testNullParameters() throws Exception {
    NullPointerTester tester = new NullPointerTester();

            return new Object();
          }
        };
    LocalLoadingCache<Object, Object> cache = makeCache(createCacheBuilder(), loader);
    assertThat(cache.localCache.defaultLoader).isSameInstanceAs(loader);
  }

  // null parameters test

  public void testNullParameters() throws Exception {
    NullPointerTester tester = new NullPointerTester();