RFR: JDK-8292276 : Missing color names in CSS. [v2]

[ScientificWare]

On Fri, 12 Aug 2022 09:48:54 GMT, ExE Boss <duke at openjdk.org> wrote:

>> ScientificWare has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Adds to CSS.java the missing color names.
>>   
>>   Adds to CSS.java, the missing color names defined by :
>>   CSS Color Module Level 4
>>   W3C Candidate Recommendation Snapshot, 5 July 2022
>>   [7.1 Named Colors](https://www.w3.org/TR/css-color-4/#named-color)
>>   - Updates, Copyright year.
>>   - Adds relative imports.
>>   - Replaces, if ... then ... else statements with TreeMap called "colorNamed".
>>     Code is more readable and easy to maintain.
>>     After tests, HashMap seems slower than TreeMap. Results are available at https://github.com/scientificware/jdk/issues/12#issuecomment-1213978168.
>>   
>>   Warning : The Previous JDK CSS Orange Color is different from CSS Color Recommendation.
>
> src/java.desktop/share/classes/javax/swing/text/html/CSS.java line 1703:
> 
>> 1701:             color = hexToColor("#f5f5f5");
>> 1702:         else if (str.equalsIgnoreCase("Yellowgreen"))
>> 1703:             color = hexToColor("#9acd32");
> 
> This should probably use <code>switch([str.toLowerCase][String::toLowerCase]([Locale.ROOT]))</code> instead of a linear search.
> 
> [String::toLowerCase]: https://docs.oracle.com/en/java/javase/18/docs/api/java.base/java/lang/String.html#toLowerCase(java.util.Locale)
> [Locale.ROOT]: https://docs.oracle.com/en/java/javase/18/docs/api/java.base/java/util/Locale.html#ROOT

Hello @ExE-Boss,
A new implementation based on your comments and some performance tests.

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PR: https://git.openjdk.org/jdk/pull/9825