question: shutdown dictionary client concode_field_sep LogService LOGGER concode_elem_sep DictionaryClientHandler dictionaryClientHandler concode_elem_sep NioEventLoopGroup workerGroup concode_field_sep DictionaryMessage getDictionary concode_elem_sep void startClient
target: void function ( ) { workerGroup . shutdownGracefully ( ) ; try { workerGroup . terminationFuture ( ) . sync ( ) ; } catch ( InterruptedException loc0 ) { LOGGER . error ( loc0 ) ; } }