RFR: 8282131: java.time.ZoneId should be a sealed abstract class

[Stephen Colebourne]

On Fri, 25 Feb 2022 19:02:55 GMT, Naoto Sato <naoto at openjdk.org> wrote:

> Refactoring `java.time.ZoneId` class to be a sealed class. A CSR has also been drafted.

Marked as reviewed by scolebourne (Author).

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PR: https://git.openjdk.java.net/jdk/pull/7625