// Update first directory cache
        List<SmbFile> files1 = Arrays.asList(mockFile1);
        directoryLeaseManager.updateDirectoryCache(dir1, files1);

        // Update second directory cache
        List<SmbFile> files2 = Arrays.asList(mockFile2);
        directoryLeaseManager.updateDirectoryCache(dir2, files2);

        // Verify both caches are independent
        assertTrue(entry1.isComplete());

        when(mockFile2.lastAccess()).thenReturn(900L);

        // Update cache
        List<SmbFile> files = Arrays.asList(mockFile1, mockFile2);
        directoryLeaseManager.updateDirectoryCache(directoryPath, files);

        // Verify cache entry was updated (test the cache content directly)
        DirectoryCacheEntry cacheEntry = directoryLeaseManager.getCacheEntry(directoryPath);

            SmbFile file = createSmbFileFromCache(directoryPath, fileInfo);
            files.add(file);
        }
        
        return files;
    }
    
    public void updateDirectoryCache(String directoryPath, List<SmbFile> files) {
        DirectoryCacheEntry entry = getCacheEntry(directoryPath);
        if (entry == null) return;
        
        // Update cache with new directory listing

        // Perform actual directory enumeration
        SmbFile[] files = smbFile.listFiles();

        // Update cache if we have a directory lease
        if (leaseKey != null) {
            dirManager.updateDirectoryCache(directoryPath, Arrays.asList(files));
        }

        return files;
    }

    /**
     * Get directory lease manager from tree handle
     */

    }

    /**
     * Update directory cache with new listing
     *
     * @param directoryPath directory path
     * @param files list of files in directory
     */
    public void updateDirectoryCache(String directoryPath, List<SmbFile> files) {
        DirectoryCacheEntry entry = getCacheEntry(directoryPath);
        if (entry == null)
            return;

        // Update cache with new directory listing