[java]ThreadLocalFury has performance issues under virtual threads in jdk21

[gongziyiyi]

Is your feature request related to a problem? Please describe.

ThreadLocal has performance issues under virtual threads in jdk21

Describe the solution you'd like

maybe use CarrierThreadLocal ??

[chaokunyang]

Will It create lots of Fury objects? For example, if we have million of virtual threads, will we have millions of Fury object?

[gongziyiyi]

@chaokunyang
Yes. CarrierThreadLocal can fix it, but unfortunately, it has not been leaked for external use and can only be opened with "--add-opens" at the moment

[chaokunyang]

We may need to add a new maven module to fury/java.

And I'm wondering whether can we use ThreadPoolFury, which use an object pool. This may be more friently to virtual thread