https://openjdk.java.net/jeps/280

2023
https://wouter.coekaerts.be/2023/breaking-string
    https://habr.com/ru/companies/bar/articles/747528/
2020
https://habr.com/ru/post/529962/
https://habr.com/ru/post/511244/
    ! jmh and internals
2019
https://www.javaspecialists.eu/archive/Issue270.html
https://dzone.com/articles/jdk-9jep-280-string-concatenations-will-never-be-t
    https://habr.com/ru/company/otus/blog/444822/
https://habr.com/ru/post/436746/
2018
https://proglib.io/p/string-comparison/
https://habr.com/company/otus/blog/428449/
https://dzone.com/articles/compact-strings-in-java-9
    https://habr.com/company/otus/blog/426621/
https://habr.com/post/424539/