[GEARPUMP-254] fix gearpump on Yarn

[huafengw]

Be sure to do all of the following to help us incorporate your contribution
quickly and easily:

• Make sure the commit message is formatted like:
  [GEARPUMP-<Jira issue #>] Meaningful description of pull request
• Make sure tests pass via sbt clean test.
• Make sure old documentation affected by the pull request has been updated and new documentation added for new functionality.

[manuzhang]

UT failed

[codecov-io]

Current coverage is 70.79% (diff: 100%)

Merging #128 into master will increase coverage by 0.41%

@@             master       #128   diff @@
==========================================
  Files           186        186          
  Lines          5988       5988          
  Methods        5469       5469          
  Messages          0          0          
  Branches        517        517          
==========================================
+ Hits           4214       4239    +25   
+ Misses         1774       1749    -25   
  Partials          0          0          

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[manuzhang]

+1 LGTM