Avoid false type warnings in DeclarativeConfigPropertyUtil.toMap

[thswlsqls]

Fixes #8919

Description

• DeclarativeConfigPropertyUtil.toMap found each value's type by calling getString, getBoolean, getLong and getDouble in turn. YamlDeclarativeConfigProperties logs Ignoring value for key [...] for each mismatched call, so valid values like ratio: 0.25 or enabled: true produced false warnings.
• The four scalar resolvers now check isString/isBoolean/isLong/isDouble first. These match the types each getter accepts, so the resulting map is unchanged (integers are still returned as Long).
• Reached via jaeger_remote.initial_sampler and InstrumentationConfigUtil.getInstrumentationConfigModel.
• Not covered: lists of numbers or booleans still warn per element in getScalarList, because there is no list introspection API.
• Related: Add type introspection to DeclarativeConfigProperties #8883 (added the is<Type> methods), DeclarativeConfigProperties: no way to coerce types without triggering warnings #8101.

Testing done

• Added DeclarativeConfigPropertyUtilTest#toMap_doesNotLogTypeWarnings (string, boolean, integer, double, nested map, string list, list of maps): asserts map values and types, and that no YamlDeclarativeConfigProperties warnings are logged.
• With the production change reverted, the test fails (14 warnings logged).
• ./gradlew :api:incubator:check passed (98 tests in test, 4 in testConvertToModel).

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 90.64%. Comparing base (49dd9f3) to head (085bb26).

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #8921      +/-   ##
============================================
+ Coverage     90.62%   90.64%   +0.01%     
- Complexity    10876    10879       +3     
============================================
  Files          1015     1015              
  Lines         29712    29720       +8     
  Branches       3874     3874              
============================================
+ Hits          26927    26939      +12     
+ Misses         1868     1863       -5     
- Partials        917      918       +1     

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Merged · refreshed 2026-10-09 16:21 UTC

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