RFR: 8037397: RegEx pattern matching loses character class after intersection (&&) operator [v4]

[Roger Riggs]

On Fri, 2 Apr 2021 19:15:39 GMT, Ian Graves <igraves at openjdk.org> wrote:

>> Bug fix with the intersection `&&` operator in regex patterns. In JDK-8037397, some character classes on the right hand side of the operator are dropped in cases where nested `[..]` classes are used with non "nested" ones.
>
> Ian Graves has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Bumping copyright date.

Marked as reviewed by rriggs (Reviewer).

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PR: https://git.openjdk.java.net/jdk/pull/3291