| AbstractFileExtractorTask | Common base class for tasks that need to extract files from a GFileSystem location. | 
| FileCache | File caching implementation. | 
| FileCacheEntry | Simple class that contains a Fileand its MD5 string. | 
| FileCacheNameIndex | A best-effort cache of MD5 values of files, where the file is identified by its parent's
 MD5 combined with the file's path inside its parent's 'namespace'. | 
| FileFingerprintCache | A best-effort cache of MD5 values of local files based on their {name,timestamp,length} fingerprint. | 
| FileSystemCache |  | 
| FileSystemIndexHelper<METADATATYPE> | A helper class used by GFilesystem implementors to track mappings between GFile
 instances and the underlying container filesystem's native file objects. | 
| FileSystemRef | A handle to a  GFileSystem which allows tracking the current users of the filesystem. | 
| FileSystemRefManager |  | 
| FileSystemService | Provides methods for dealing with GFilesystem files and  filesystems. | 
| FSRL | A _F_ile _S_ystem _R_esource _L_ocator, (name and string format patterned after URLs) | 
| FSRLRoot | A type of  FSRL that is specific to the filesystem's identity. | 
| FSUtilities |  | 
| FSUtilities.StreamCopyResult |  | 
| GFileImpl |  | 
| GFileLocal | GFile implementation that refers to a real java.io.File on the local
 file system. | 
| GFileSystemBase | This is the original GFileSystem implementation abstract base class, with most of the
 initially implemented filesystem types extending this class. | 
| LocalFileSystem | A  GFileSystem implementation giving access to the user's operating system's
 local file system. | 
| LocalFileSystemSub | A  GFileSystem interface to a part of the user's local / native file system. | 
| RefdFile |  | 
| SelectFromListDialog<T> | Dialog that presents the user with a list of strings and returns the object
 associated with the user-picked element. | 
| SingleFileSystemIndexHelper | A helper class used by GFilesystem implementors that have a single file to handle lookups
 and requests for that file. |