Lock with object vs empty byte array?

[pengisgood]

Just curious about the lock with the empty byte array, what's the benefit of an empty byte array compare to Object?

https://github.com/WeBankFinTech/Linkis/blob/4ac1a51f25d5ea451d90e59294d0c6227c124147/core/scheduler/src/main/scala/com/webank/wedatasphere/linkis/scheduler/queue/LoopArrayQueue.scala#L27

I also found a post on StackOverflow which is relevant. Mostly discussed from the byte code and serialization perspective.

Does it really matter with performance?

Any ideas from the author(probably is @enjoyyin) of this line of code?

[peacewong]

Hello, this is just a habit of using locks, it has no special meaning