void function ( int arg0 , String arg1 ) { service = Optional . of ( SafeExecutors . newFixedThreadPool ( arg0 , arg1 ) ) ; }
provide a fixed thread pool executor concode_field_sep Logger log concode_elem_sep Optional<ListeningExecutorService> service concode_elem_sep Optional<ListeningScheduledExecutorService> scheduledService concode_field_sep Optional<ListeningExecutorService> getExecutorServiceOptional concode_elem_sep ListeningExecutorService getExecutorService concode_elem_sep void requireSingleThreadScheduledExecutor concode_elem_sep boolean start concode_elem_sep void requireSingleThreadExecutor concode_elem_sep void onShutdownEvent concode_elem_sep void stopAndWait concode_elem_sep ListeningScheduledExecutorService getScheduledExecutorService