feat: use a map with a capacity limit to prevent OutOfMemoryError (OOM).

[wardseptember]

No description provided.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 85.84342%. Comparing base (151e458) to head (b2f7ba2).

Additional details and impacted files

@@                  Coverage Diff                  @@
##                master        #144         +/-   ##
=====================================================
- Coverage     85.90413%   85.84342%   -0.06072%     
- Complexity        4329        4330          +1     
=====================================================
  Files              436         436                 
  Lines            14373       14382          +9     
  Branches          1287        1287                 
=====================================================
- Hits             12347       12346          -1     
- Misses            2026        2036         +10     

Files with missing lines	Coverage Δ
...rpc/proto/standard/common/StandardServerCodec.java	93.71429% <100.00000%> (+0.94321%)	⬆️

... and 7 files with indirect coverage changes

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