RFR: 8328821: Map.of() derived view collection mutators should throw UnsupportedOperationException [v11]

Sat May 31 19:22:53 UTC 2025

On Fri, 30 May 2025 04:21:26 GMT, Stuart Marks <smarks at openjdk.org> wrote:

> [JDK-8316493](https://bugs.openjdk.org/browse/JDK-8316493) (remove caching fields in AbstractMap)

I tested that one over Google's codebase, and unlike this change where there was no observable compatibility impact, I did see some breakages related to JDK-8316493. I left [a comment in the CSR](https://bugs.openjdk.org/browse/JDK-8316583?focusedId=14785229&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#comment-14785229).

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PR Comment: https://git.openjdk.org/jdk/pull/18522#issuecomment-2925618911