fix: resolve null value in map & list

[yndu13]

No description provided.

[codecov-commenter]

Codecov Report

Attention: 2 lines in your changes are missing coverage. Please review.

Comparison is base (55f7d27) 88.39% compared to head (152dac3) 88.44%.

❗ Current head 152dac3 differs from pull request most recent head da1e3fd. Consider uploading reports for the commit da1e3fd to get more accurate results

Files	Patch %	Lines
src/main/java/com/aliyun/tea/TeaModel.java	66.66%	0 Missing and 2 partials ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master     #173      +/-   ##
============================================
+ Coverage     88.39%   88.44%   +0.04%     
- Complexity      407      409       +2     
============================================
  Files            27       27              
  Lines          1086     1090       +4     
  Branches        162      164       +2     
============================================
+ Hits            960      964       +4     
  Misses           82       82              
  Partials         44       44              

Flag	Coverage Δ
java	88.44% <66.66%> (+0.04%)	⬆️

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