RFR: 8372258: Improve TypeVariable support

[Chen Liang]

On Thu, 20 Nov 2025 13:06:12 GMT, Per Minborg <pminborg at openjdk.org> wrote:

> The `TypeVariableImpl::getGenericDeclaration` method should return copies of generic declarations where appropriate.

The CSR should address the specification change on `java.lang.reflect.TypeVariable` instead of on `TypeVariableImpl`.

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Changes requested by liach (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/28429#pullrequestreview-3497324775