Fix a missing link

[wu-sheng]

Follow #4783

[codecov]

Codecov Report

Merging #4870 into master will increase coverage by 1.37%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##             master    #4870      +/-   ##
============================================
+ Coverage     49.83%   51.20%   +1.37%     
- Complexity     2736     2740       +4     
============================================
  Files           762     1342     +580     
  Lines         18850    29327   +10477     
  Branches       1852     3237    +1385     
============================================
+ Hits           9393    15016    +5623     
- Misses         8706    13600    +4894     
+ Partials        751      711      -40     

Impacted Files	Coverage Δ	Complexity Δ
...erver/receiver/envoy/MetricServiceGRPCHandler.java	12.16% <0.00%> (-77.84%)	2.00% <0.00%> (ø%)
...er/receiver/envoy/AccessLogServiceGRPCHandler.java	20.75% <0.00%> (-37.15%)	2.00% <0.00%> (ø%)
...skywalking/oap/server/core/alarm/AlarmMessage.java	66.66% <0.00%> (-33.34%)	2.00% <0.00%> (ø%)
...ient/elasticsearch/ElasticSearchInsertRequest.java	80.00% <0.00%> (-20.00%)	2.00% <0.00%> (ø%)
...ient/elasticsearch/ElasticSearchUpdateRequest.java	80.00% <0.00%> (-20.00%)	2.00% <0.00%> (ø%)
...ticsearch7/client/ElasticSearch7UpdateRequest.java	80.00% <0.00%> (-20.00%)	2.00% <0.00%> (ø%)
...ticsearch7/client/ElasticSearch7InsertRequest.java	83.33% <0.00%> (-16.67%)	2.00% <0.00%> (ø%)
...erver/core/analysis/data/MergableBufferedData.java	84.61% <0.00%> (-15.39%)	4.00% <0.00%> (ø%)
...server/core/analysis/worker/AlarmNotifyWorker.java	85.71% <0.00%> (-14.29%)	3.00% <0.00%> (ø%)
.../server/core/analysis/data/ReadWriteSafeCache.java	68.18% <0.00%> (-10.77%)	3.00% <0.00%> (ø%)
... and 904 more

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[hanahmily]

LGTM