<Swing Dev> RFR: 8268087: Update documentation of the JPasswordField [v2]

[Phil Race]

On Thu, 3 Jun 2021 21:31:20 GMT, Sergey Bylokhov <serb at openjdk.org> wrote:

>> Some useful documentation was added to the JPasswordField.
>
> Sergey Bylokhov has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Update JPasswordField.java

Marked as reviewed by prr (Reviewer).

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PR: https://git.openjdk.java.net/jdk/pull/4296