Fix javadoc in Aggregations class

[bogdandrutu]

No description provided.

[codecov-io]

Codecov Report

Merging #886 into master will decrease coverage by 0.1%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##             master     #886      +/-   ##
============================================
- Coverage     83.06%   82.95%   -0.11%     
  Complexity      823      823              
============================================
  Files           107      107              
  Lines          2869     2869              
  Branches        253      253              
============================================
- Hits           2383     2380       -3     
- Misses          373      375       +2     
- Partials        113      114       +1

Impacted Files	Coverage Δ	Complexity Δ
...o/opentelemetry/sdk/metrics/view/Aggregations.java	55.88% <ø> (ø)	2 <0> (ø)	⬇️
...elemetry/sdk/trace/export/BatchSpansProcessor.java	88.79% <0%> (-2.59%)	7% <0%> (ø)

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