replace non-servlet usages of request details get/set attribute with getUserData

[fil512]

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[robogary]

Formatting check succeeded!

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 83.79%. Comparing base (112cec3) to head (177cb2d).
Report is 73 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #7068      +/-   ##
============================================
+ Coverage     83.41%   83.79%   +0.38%     
- Complexity    29193    29401     +208     
============================================
  Files          1843     1801      -42     
  Lines        113422   113659     +237     
  Branches      14251    14319      +68     
============================================
+ Hits          94608    95243     +635     
+ Misses        12730    12309     -421     
- Partials       6084     6107      +23     

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