[ISSUE #4103] Simplify string-list-join in Message

[dugenkui03]

Make sure set the target branch to develop

What is the purpose of the change

#4103

Brief changelog

XX

Verifying this change

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[codecov-commenter]

Codecov Report

Merging #4104 (d652cd4) into develop (fd554ab) will decrease coverage by 0.02%.
The diff coverage is 0.00%.

@@              Coverage Diff              @@
##             develop    #4104      +/-   ##
=============================================
- Coverage      47.91%   47.88%   -0.03%     
+ Complexity      5001     4998       -3     
=============================================
  Files            634      634              
  Lines          42529    42525       -4     
  Branches        5573     5572       -1     
=============================================
- Hits           20377    20363      -14     
- Misses         19651    19659       +8     
- Partials        2501     2503       +2     

Impacted Files	Coverage Δ
...va/org/apache/rocketmq/common/message/Message.java	56.96% <0.00%> (+2.74%)	⬆️
...in/java/org/apache/rocketmq/test/util/MQAdmin.java	38.88% <0.00%> (-5.56%)	⬇️
...ava/org/apache/rocketmq/test/util/VerifyUtils.java	46.26% <0.00%> (-2.99%)	⬇️
...lient/impl/consumer/DefaultMQPushConsumerImpl.java	41.05% <0.00%> (-2.99%)	⬇️
...mq/client/impl/consumer/RebalanceLitePullImpl.java	72.05% <0.00%> (-1.48%)	⬇️
...e/rocketmq/client/impl/consumer/RebalanceImpl.java	43.75% <0.00%> (-0.79%)	⬇️
...nt/impl/consumer/ConsumeMessageOrderlyService.java	49.64% <0.00%> (-0.71%)	⬇️
...a/org/apache/rocketmq/store/StoreStatsService.java	36.41% <0.00%> (-0.57%)	⬇️
...ent/impl/consumer/DefaultLitePullConsumerImpl.java	68.79% <0.00%> (-0.52%)	⬇️
...ocketmq/client/consumer/DefaultMQPushConsumer.java	57.92% <0.00%> (-0.50%)	⬇️
... and 12 more

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[coveralls]

Coverage decreased (-0.2%) to 51.8% when pulling d652cd4 on dugenkui03:patch-8 into fd554ab on apache:develop.

[coveralls]

Coverage decreased (-0.2%) to 51.8% when pulling d652cd4 on dugenkui03:patch-8 into fd554ab on apache:develop.