[TUBEMQ-374]Adjust some coding style issues

[gosonzhang]

No description provided.

[codecov-io]

Codecov Report

Merging #286 into master will decrease coverage by 0.02%.
The diff coverage is n/a.

@@             Coverage Diff             @@
##             master    #286      +/-   ##
===========================================
- Coverage      8.02%   7.99%   -0.03%     
+ Complexity      466     465       -1     
===========================================
  Files           245     245              
  Lines         27132   27132              
  Branches       4492    4492              
===========================================
- Hits           2176    2168       -8     
- Misses        24485   24491       +6     
- Partials        471     473       +2     

Impacted Files	Coverage Δ	Complexity Δ
.../java/org/apache/flume/sink/tubemq/TubemqSink.java	51.42% <0.00%> (-4.00%)	14.00% <0.00%> (ø%)
.../producer/qltystats/DefaultBrokerRcvQltyStats.java	45.31% <0.00%> (-0.40%)	20.00% <0.00%> (-1.00%)

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