Why StringBuffer class is final in Java?

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Tags

1. #modifying
2. #string
3. #subclasses
4. #methods
5. #immutable
6. #supporting
7. #stringbuffer
8. #helps
9. #contents
10. #mutation
11. #class
12. #final
13. #allow
14. #stringbuilder
15. #requirement
16. #prohibiting
17. #declaring
18. #which
19. #could
20. #introduce
21. #while