RFR: 8356632: Fix remaining {@link/@linkplain} tags with refer to private/protected types in java.base

[Daniel Fuchs]

On Sat, 17 May 2025 19:42:39 GMT, Nizar Benalla <nbenalla at openjdk.org> wrote:

> Please review this patch to fix some `javadoc` bugs in `java.base`.
> Certain `@link` tags used to refer to private fields instead of public APIs.
> 
> A couple of `@see` tags in the [serialization page](https://download.java.net/java/early_access/jdk25/docs/api/serialized-form.html#java.lang.invoke.MethodType) referred to private methods, I updated the javadoc in a way to not change the way it is displayed to users but also remove `@link` tags to non-included types.
> 
> TIA

Changes to `java.net.Socket` LGTM

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PR Review: https://git.openjdk.org/jdk/pull/25287#pullrequestreview-2854340236