How can I get face_confience info?

[nhancv]

Hi team,
Thank for your awesome job. I am using it. In some cases, the landmark is not correct with face_confience rate is lower. The log message look like: I/jni_info: tracking_time:0.053353 face_confience:0.009775. I just don't know how can I get it on Java to avoid the case aforementioned.