RFR: 8328242: Add a log area to the PassFailJFrame [v2]

[lawrence.andrews]

On Fri, 15 Mar 2024 15:05:28 GMT, Alexey Ivanov <aivanov at openjdk.org> wrote:

>> I keep it for consistency across builder methods, e.g. `screenCapture` does not need to specify it either.
>
> Okay. Most methods of the builder use `this.` prefix when assigning something to a field.

How about having a clear log button. Just an idea
Example : 
I have a mouse event test & I am using the logArea to add all the events into it. But when I have to file a bug & I wanted to show only the required log in the log area in the screen shot by clicking on the 'screen capture' button. I have to clear the log in the logarea and repeat the test and show only the required log in the log area. In this scenario if we can provide a 'Clear log' button will be much useful .

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PR Review Comment: https://git.openjdk.org/jdk/pull/18319#discussion_r1526466970