Reproducible: always
Is a regression: no
Is platform-specific: no
Steps to reproduce: run attached sample and pass URI to any flv video as parameter.
Expected output: "video/x-flv"
Actual output: "video/x-javafx"
Command "file --mime-type" says, that file type is "video/x-flv", checked on
http://stt-13.ru.oracle.com/testsuites/javafx8/media/flv/60sec.PoolTable.322424.flv and some local videos.