question: public InMemoryMessageExchangeStore ( final NetworkConfig config , TokenProvider tokenProvider ) { if ( config == null ) { throw new NullPointerException ( "Configuration must not be null" ) ; } if ( tokenProvider == null ) { throw new NullPointerException ( "TokenProvider must not be null" ) ; } this . tokenProvider = tokenProvider ; this . config = config ; }
target:  Creates a new store for configuration values.