Fix insufficient test coverage and issues related to Chinese language presence

[magicliang]

No description provided.

[magicliang]

I have read the CLA Document and I hereby sign the CLA

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 69.91197%. Comparing base (d18e56e) to head (130229a).
⚠️ Report is 1 commits behind head on master.

Additional details and impacted files

@@                  Coverage Diff                  @@
##                master         #98         +/-   ##
=====================================================
- Coverage     70.17995%   69.91197%   -0.26799%     
- Complexity        4248        4252          +4     
=====================================================
  Files              437         437                 
  Lines            17116       17153         +37     
  Branches          1730        1733          +3     
=====================================================
- Hits             12012       11992         -20     
- Misses            3980        4044         +64     
+ Partials          1124        1117          -7     

Files with missing lines	Coverage Δ
...va/com/tencent/trpc/core/common/ConfigManager.java	70.27027% <100.00000%> (-14.43561%)	⬇️
...c/core/management/support/MBeanRegistryHelper.java	93.33333% <100.00000%> (+5.83333%)	⬆️
...core/worker/support/thread/ForkJoinWorkerPool.java	87.80488% <100.00000%> (+3.18949%)	⬆️
...c/core/worker/support/thread/ThreadWorkerPool.java	62.85714% <100.00000%> (+1.69209%)	⬆️
...rpc/proto/http/client/AbstractConsumerInvoker.java	89.24731% <100.00000%> (+2.66194%)	⬆️

... and 9 files with indirect coverage changes

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