| CheckedGraphManager | A  GraphManager that will prevent Gremlin Server from starting if all configured graphs fail. | 
| DefaultGraphManager | Holder for  Graph and  TraversalSource instances configured for the server to be passed to script
 engine bindings. | 
| ExceptionHelper | Deprecated. | 
| GremlinServerInstall | Command line installer for plugins to Gremlin Server. | 
| LifeCycleHook.Context | Contains objects from the server that might be useful to scripting during the startup and shutdown process. | 
| ServerGremlinExecutor | The core of script execution in Gremlin Server. | 
| SSLStoreFilesModificationWatcher | FileWatcher monitoring changes to SSL keyStore/trustStore files. | 
| TextPlainMessageSerializer | A highly use-case specific serializer that only has context for HTTP where results simply need to be converted
 to string in a line by line fashion for text based returns. | 
| ThreadFactoryUtil |  | 
| TraverserIterator |  |