[#noissue] remove JAVA_9_HOME

[ga-ram]

No description provided.

[codecov]

Codecov Report

Merging #9377 (3e644d3) into master (c00fb4f) will increase coverage by 0.01%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##             master    #9377      +/-   ##
============================================
+ Coverage     39.45%   39.47%   +0.01%     
- Complexity    11779    11787       +8     
============================================
  Files          3408     3408              
  Lines         91258    91258              
  Branches      10124    10124              
============================================
+ Hits          36006    36022      +16     
+ Misses        52126    52112      -14     
+ Partials       3126     3124       -2     

Impacted Files	Coverage Δ
...orp/pinpoint/rpc/server/DefaultPinpointServer.java	81.06% <0.00%> (+1.23%)	⬆️
...ollector/cluster/zookeeper/ZookeeperJobWorker.java	79.67% <0.00%> (+1.60%)	⬆️
...corp/pinpoint/rpc/stream/StreamChannelManager.java	61.79% <0.00%> (+5.61%)	⬆️
...vercorp/pinpoint/rpc/packet/ClientClosePacket.java	53.33% <0.00%> (+6.66%)	⬆️
...p/pinpoint/rpc/client/WriteFailFutureListener.java	81.25% <0.00%> (+25.00%)	⬆️

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