Update java highlight mode to support 21 version features

[mkslanc]

Issue #, if available: #5338 #2742

Description of changes:

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[codecov]

Codecov Report

All modified lines are covered by tests ✅

Comparison is base (7a6b83e) 87.41% compared to head (15f343f) 87.44%.
Report is 5 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #5343      +/-   ##
==========================================
+ Coverage   87.41%   87.44%   +0.02%     
==========================================
  Files         574      575       +1     
  Lines       45613    45679      +66     
  Branches     6935     6939       +4     
==========================================
+ Hits        39873    39943      +70     
+ Misses       5740     5736       -4     

Flag	Coverage Δ
unittests	87.44% <100.00%> (+0.02%)	⬆️

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Files	Coverage Δ
src/mode/java_highlight_rules.js	100.00% <100.00%> (ø)

... and 5 files with indirect coverage changes

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[bowbahdoe]

This isn't correct. Technically the prefix can be any expression so long as it returns a TemplateProcessor

so

try (var conn = ds.getConnection()) {
   var stmt = conn."""
   SELECT * FROM table WHERE x = \{x}
   """;
}

or

a.b().c().e()."""
   Sub \{here}
"""

[mkslanc]

In that case, new approach should work. The only problem I see - is usage of outstanding ."""text""" without adding any processor, but for solving this case mode should recognize whole contexts and this would be a little bit too much.

[bowbahdoe]

I see i was requested to review it - give me a minute to figure out how to test it locally...

[bowbahdoe]

One strange thing is that record declarations seem to be seen as method calls? Thats fine for the param list, but its strange that one class name would be highlighted differently than another

[InspiredGuy]

Hey @bowbahdoe thank you for the review! Would you consider the issue you highlighted above a deal breaker to merge this PR? I'm not a Java user myself so it's hard for me to evaluate the severity of the issue you pointed out above.

@mkslanc please take a look at the issue above, maybe fixing it would be faster than discussing it :)

[mkslanc]

@bowbahdoe @InspiredGuy This change should make it :)

[bowbahdoe]

@mkslanc I will take a look tonight

[bowbahdoe]

I think this looks good. Once there is a release, i'll update https://java-playground.com and if we find any more issues i'll report them

[InspiredGuy]

Thank you @bowbahdoe , your help is appreciated!