// Step 3: Verify can cache directory listing
        assertTrue(directoryLeaseManager.canCacheDirectoryListing(directoryPath));

        // Step 4: Initially no cached listing
        assertNull(directoryLeaseManager.getCachedDirectoryListing(directoryPath));

        // Step 5: Simulate directory enumeration and update cache
        List<SmbFile> files = Arrays.asList(mockFile1, mockFile2);

     *
     * @see Function
     * @see Optional
     * @see HashMap#computeIfAbsent(Object, Function)
     */
    static UnaryOperator<String> memoize(UnaryOperator<String> callback) {
        Map<String, Optional<String>> cache = new HashMap<>();
        return s -> cache.computeIfAbsent(s, v -> Optional.ofNullable(callback.apply(v)))

        DfsResolver dfs2 = context.getDfs();
        BufferCache cache1 = context.getBufferCache();
        BufferCache cache2 = context.getBufferCache();

        // Then - should be same instances
        assertSame(config1, config2, "Configuration should be consistent");
        assertSame(dfs1, dfs2, "DFS resolver should be consistent");
        assertSame(cache1, cache2, "Buffer cache should be consistent");
    }

    @Test

     * @return the maximum cache age in milliseconds
     */
    public long getMaxAge() {
        return maxAge;
    }

    /**
     * Sets the maximum age for cached data
     * @param maxAge the maximum cache age in milliseconds
     */
    public void setMaxAge(long maxAge) {
        this.maxAge = maxAge;
    }

    /**

Shinsuke Sugaya <******@****.***> 1462510149 +0900

Shinsuke Sugaya <******@****.***> 1462510149 +0900

			remove[id] = struct{}{}
			continue
		}
		if cache.id != id {
			logger.Info("cache ID mismatch %s != %s", id, cache.id)
			remove[id] = struct{}{}
			continue
		}
		if cache.bucket != b.bucket {
			logger.Info("cache bucket mismatch %s != %s", b.bucket, cache.bucket)
			remove[id] = struct{}{}
			continue
		}
	}

	// If above limit, remove the caches with the oldest handout time.

      cache.invalidate("a");
      cache.invalidate("b");
      cache.invalidate(0);
      checkEmpty(cache);
    }
  }

  public void testInvalidateAll_empty() {
    for (LoadingCache<Object, Object> cache : caches()) {
      cache.getUnchecked("a");
      cache.getUnchecked("b");
      cache.getUnchecked("c");
      cache.invalidateAll();
      checkEmpty(cache);
    }
  }

it with their cache, and use that same instance everywhere. Otherwise the two cache instances will stomp on each other, corrupt the response cache, and possibly crash your program.

Response caching uses HTTP headers for all configuration. You can add request headers like `Cache-Control: max-stale=3600` and OkHttp's cache will honor them. Your webserver configures how long responses are cached with its own response headers, like `Cache-Control: max-age=9600`. There are cache headers to force...

                s.acctName = "userX";
            }
            return null;
        }).when(cache).resolveSids0(any(), any(), any());

        cache.resolveSids(ctx, null, arr, 2, 1); // resolve only s3

        // Verify cache behavior - after reset, spying on the same cache won't work
        // Since we're working with internal state, we'll verify the side effects