Fix uncompilable Javadoc examples in io.opentelemetry.context

[thswlsqls]

Fixes #8931

Description

• Context class and Context.with(ContextKey, Object) Javadoc: CRED_KEY.get() (no such method) → Context.current().get(CRED_KEY).
• ContextKey Javadoc: static Context.with(KEY, ...) → Context.current().with(KEY, ...). ContextKey update example code #7420 renamed withValues to with but kept the static call.
• ContextStorage Javadoc: drop the > line prefix, replace the nonexistent RequestContextStorage with ContextStorage, fix public Scope T attach, and add the missing semicolons.
• Context.wrap(Callable) Javadoc: say Callable instead of Runnable.
• Follows Fix javadoc examples in context propagation interfaces #8715, which fixed the same problem in io.opentelemetry.context.propagation.

Testing done

• Docs-only: no test added, no public API change.
• ./gradlew :context:check :context:javadoc passed.
• Compiled the updated examples with javac --release 8 against context/build/classes/java/main (with stub helpers): all compile. The previous versions fail with cannot find symbol, non-static method ... cannot be referenced from a static context, and ';' expected.

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Waiting on reviewers · refreshed 2026-10-13 03:26 UTC

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 90.66%. Comparing base (387f5c5) to head (fda4373).

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #8934      +/-   ##
============================================
+ Coverage     90.65%   90.66%   +0.01%     
- Complexity    10887    10890       +3     
============================================
  Files          1015     1015              
  Lines         29731    29731              
  Branches       3876     3876              
============================================
+ Hits          26953    26957       +4     
  Misses         1860     1860              
+ Partials        918      914       -4     

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