RFR: 8350549: MethodHandleProxies.WRAPPER_TYPES is not thread-safe

[Chen Liang]

On Mon, 24 Feb 2025 23:47:02 GMT, Chen Liang <liach at openjdk.org> wrote:

> Use a thread-safe ReferencedKeySet instead of a WeakHashMap key set.

We might need a general test suite to ensure behaviors around concurrent definition/queries against a MHP instance.

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PR Comment: https://git.openjdk.org/jdk/pull/23757#issuecomment-2759668288