[Java] Optimize the copy performance of some thread-safe classes
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enhancement
- Dominant language
- Java
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Description
## Is your feature request related to a problem? Please describe.
Some thread-safe classes use a generic copyElements() method, for example: `CopyOnWriteArrayList`...
when adding elements, locking operations are performed, which is very time-consuming.
## Describe the solution you'd like
Optimize the performance of these copy classes
## Additional context
Contributor guide
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