<Swing Dev> RFR: 8273043: [TEST_BUG] Automate NimbusJTreeSelTextColor.java [v2]

[Pankaj Bansal]

On Thu, 26 Aug 2021 22:22:54 GMT, Alexey Ivanov <aivanov at openjdk.org> wrote:

>> Automated NimbusJTreeSelTextColor.java test which is added under [JDK-8271315](https://bugs.openjdk.java.net/browse/JDK-8271315).
>> 
>> It passes with the recent build of JDK 18.  
>> It fails with JDK 18 build 7 where [JDK-8266510](https://bugs.openjdk.java.net/browse/JDK-8266510) is not fixed yet:
>> 
>> 
>> Exception in thread "main" java.lang.RuntimeException: Unexpected color found: ff000000 at (4, 9);
>> foreground: ffffffff; background: ff39698a - check image.png
>>         at NimbusJTreeSelTextColor.checkColors(NimbusJTreeSelTextColor.java:106)
>>         at NimbusJTreeSelTextColor.main(NimbusJTreeSelTextColor.java:70)
>> 
>> 
>> The line is wrapped for readability. In this case the text is black instead of white.
>
> Alexey Ivanov has updated the pull request incrementally with two additional commits since the last revision:
> 
>  - Mark the test headless
>  - Paint JTree into BufferedImage

I assume you must have tested this on headless environment and it must have passed. But is it really necessary to make this headless as we are showing JFrame and setting L&F. I mean these things mostly associate with headful environment.

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PR: https://git.openjdk.java.net/jdk/pull/5269