RFR: 8295324: JavaFX: Blank pages when printing [v4]

[eduardsdv]

On Thu, 1 Dec 2022 10:12:26 GMT, eduardsdv <duke at openjdk.org> wrote:

>> This fixes a race condition between application and 'Print Job Thread' threads when printing.
>> 
>> The race condition occurs when application thread calls `endJob()`, which in effect sets the `jobDone` flag to true,
>> and when the 'Print Job Thread' thread was in the `synchronized` block in `waitForNextPage()` at that time.
>> The 'Print Job Thread' thread checks `jobDone` flag after exiting the `synchronized` block and, if it is true, skips the last page.
>> 
>> In this fix, not only the `jobDone` is checked, but also that there is no other page to be printed.
>> It was also needed to introduce a new flag 'jobCanceled', to skip the page if the printing was canceled by 'cancelJob()'.
>
> eduardsdv has updated the pull request incrementally with three additional commits since the last revision:
> 
>  - Revert "8295324: Apply patch with junit from the issue"
>    
>    This reverts commit c76b8207242a7af82f5515e49760158fa40da2a9.
>  - Revert "8295324: Fix race condition in junit test"
>    
>    This reverts commit fdec73d8f4ff21908bf99d191b76ffeed42bfb36.
>  - Revert "8295324: Adjust the J2DPrinterJobTest"
>    
>    This reverts commit 0723d2ebcd2c41d40005dbb1652c4ec96cfe4f8c.

Ok. I have reverted all changes regarding refactoring and testing.

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PR: https://git.openjdk.org/jfx/pull/916