[ISSUE #3897]Admin, RocketMQAdmin, StandaloneAdmin and AbstractRmqAdmin can be more clearer.

[pandaapo]

Fixes #3897.

Motivation

See "Enhancement Request" in issue.

Modifications

See "Describe the solution you'd like" in issue.

Documentation

• Does this pull request introduce a new feature? no

[codecov]

Codecov Report

Merging #3898 (2a82260) into master (0ce8d57) will decrease coverage by 0.01%.
The diff coverage is 2.94%.

❗ Current head 2a82260 differs from pull request most recent head b0615f0. Consider uploading reports for the commit b0615f0 to get more accurate results

@@             Coverage Diff              @@
##             master    #3898      +/-   ##
============================================
- Coverage     14.24%   14.23%   -0.01%     
+ Complexity     1320     1317       -3     
============================================
  Files           579      578       -1     
  Lines         28967    28949      -18     
  Branches       2802     2801       -1     
============================================
- Hits           4125     4121       -4     
+ Misses        24450    24438      -12     
+ Partials        392      390       -2     

Impacted Files	Coverage Δ
...col/http/body/message/PushMessageResponseBody.java	0.00% <0.00%> (ø)
...ol/http/body/message/ReplyMessageResponseBody.java	0.00% <0.00%> (ø)
...ttp/body/message/SendMessageBatchResponseBody.java	0.00% <0.00%> (ø)
...p/body/message/SendMessageBatchV2ResponseBody.java	0.00% <0.00%> (ø)
...col/http/body/message/SendMessageResponseBody.java	0.00% <0.00%> (ø)
...ventmesh/storage/rocketmq/admin/RocketMQAdmin.java	0.00% <0.00%> (ø)
...h/storage/rocketmq/admin/RocketMQAdminAdaptor.java	0.00% <ø> (ø)
...mesh/storage/standalone/admin/StandaloneAdmin.java	96.77% <100.00%> (+4.46%)	⬆️

... and 1 file with indirect coverage changes

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