seekSeconds doesn't work for flac files

I have just tried a little, but it seems that seekSeconds doesn't work if the audio file is a flac file.

https://github.com/goxr3plus/java-stream-player/blob/634c9912c38437285faf5644b4046bb5546db597/src/main/java/com/goxr3plus/streamplayer/stream/StreamPlayer.java#L715-L727

Part of the problem is in TimeTool.durationInMilliseconds_Part2(), where the value on line 110 fall through if the file extension is not mp3, wav or ogg.

https://github.com/goxr3plus/java-stream-player/blob/634c9912c38437285faf5644b4046bb5546db597/src/main/java/com/goxr3plus/streamplayer/tools/TimeTool.java#L117-L120

This leads to an exception.
UnsupportedOperationException: Trying to skip with seconds {15} > maximum {-1}

If this value is changed to 1000000 (1000 seconds), this exception doesn't happen.
But the seek still doesn't happen.
That's as far as I have investigated.

See also https://github.com/HelgeStenstrom/java-stream-player/tree/appWithFlac