Sporadic Recording using vlcj 3.10.1

[jeff1965]

Hi I am using the vlcj 3.10.1 api with vlc version 2.2.4 to record video and audio from an RTSP stream.
I have been trying to record and use the -vvv option to the MediaPlayerFactory constructor to look at the debug coming out of vlc.
The problem I have is that when the file that vlc should save the video or audio to will result in a zero length file.
I don't see any differences in the debug output between a successful recording and an unsuccessful, or zero length, recording.
Does anyone have any ideas how to check or see if the application in vlc is successfully writing to the filename provided?

Thanks for the help,

Jeff