RFR: 8284922: Fix some doc-comment issues on methods with package access in JDK API

Fri Apr 15 20:13:40 UTC 2022

On Fri, 15 Apr 2022 19:34:33 GMT, Pavel Rappo <prappo at openjdk.org> wrote:

> People rarely include JDK elements with package access in a javadoc run. That is why bugs in those elements' doc comments tend to remain unnoticed.
> 
> There are many more bugs in the doc comments of the JDK elements with the package access than are addressed by this PR; I only included the simplest ones.

Marked as reviewed by bpb (Reviewer).

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PR: https://git.openjdk.java.net/jdk/pull/8267