if (HeartbeatInterceptor.class.isAssignableFrom(interceptor.getClass())) { final HeartbeatInterceptor heartbeatInterceptor = HeartbeatInterceptor.class.cast(interceptor); heartbeatInterval = heartbeatInterceptor.clientHeartbeatFrequencyInSeconds() * 1000; heartbeatData = new String(heartbeatInterceptor.getPaddingBytes()); break;