Change Volatile

Volatile fields:

https://github.com/goxr3plus/java-stream-player/blob/a4aaa94c19f99da6ae46cb2bca60bae62aa41b40/src/main/java/com/goxr3plus/streamplayer/stream/StreamPlayer.java#L72

https://github.com/goxr3plus/java-stream-player/blob/a4aaa94c19f99da6ae46cb2bca60bae62aa41b40/src/main/java/com/goxr3plus/streamplayer/stream/StreamPlayer.java#L78

https://github.com/goxr3plus/java-stream-player/blob/a4aaa94c19f99da6ae46cb2bca60bae62aa41b40/src/main/java/com/goxr3plus/streamplayer/stream/StreamPlayer.java#L111

SonarLint says that you should remove volatile from these fields.
See https://wiki.sei.cmu.edu/confluence/display/java/CON50-J.+Do+not+assume+that+declaring+a+reference+volatile+guarantees+safe+publication+of+the+members+of+the+referenced+object

IntelliJ complains about non-atomic operation on volatile field, probably as a consequence.
https://github.com/goxr3plus/java-stream-player/blob/a4aaa94c19f99da6ae46cb2bca60bae62aa41b40/src/main/java/com/goxr3plus/streamplayer/stream/StreamPlayer.java#L483

IntelliJ inspection also complains about Synchronization on a non-final field 'audioLock' in three places, the first being
https://github.com/goxr3plus/java-stream-player/blob/a4aaa94c19f99da6ae46cb2bca60bae62aa41b40/src/main/java/com/goxr3plus/streamplayer/stream/StreamPlayer.java#L202

so you should change audioLock from volatile to final.