[ISSUE #4254] use function computeIfAbsent replace if

[MinXie1209]

Make sure set the target branch to develop

What is the purpose of the change

use function computeIfAbsent replace if #4254

Brief changelog

use function computeIfAbsent replace if #4254

Verifying this change

use function computeIfAbsent replace if #4254

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[codecov-commenter]

Codecov Report

Merging #4255 (db6a3e1) into develop (9f97eba) will decrease coverage by 0.00%.
The diff coverage is 100.00%.

@@              Coverage Diff              @@
##             develop    #4255      +/-   ##
=============================================
- Coverage      48.11%   48.10%   -0.01%     
- Complexity      5057     5068      +11     
=============================================
  Files            637      642       +5     
  Lines          42628    42786     +158     
  Branches        5598     5600       +2     
=============================================
+ Hits           20510    20583      +73     
- Misses         19603    19688      +85     
  Partials        2515     2515              

Impacted Files	Coverage Δ
...pache/rocketmq/store/dledger/DLedgerCommitLog.java	76.07% <100.00%> (-0.15%)	⬇️
...rg/apache/rocketmq/common/stats/StatsSnapshot.java	84.61% <0.00%> (-15.39%)	⬇️
...org/apache/rocketmq/common/stats/StatsItemSet.java	44.77% <0.00%> (-10.45%)	⬇️
.../apache/rocketmq/common/stats/MomentStatsItem.java	38.09% <0.00%> (-9.53%)	⬇️
...ache/rocketmq/common/stats/MomentStatsItemSet.java	39.13% <0.00%> (-8.70%)	⬇️
...in/java/org/apache/rocketmq/test/util/MQAdmin.java	38.88% <0.00%> (-5.56%)	⬇️
...apache/rocketmq/remoting/netty/ResponseFuture.java	85.00% <0.00%> (-5.00%)	⬇️
...rocketmq/remoting/netty/NettyRemotingAbstract.java	47.08% <0.00%> (-4.02%)	⬇️
...va/org/apache/rocketmq/common/stats/StatsItem.java	50.83% <0.00%> (-3.34%)	⬇️
...mq/client/impl/consumer/RebalanceLitePullImpl.java	72.05% <0.00%> (-1.48%)	⬇️
... and 23 more

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[coveralls]

Coverage increased (+0.008%) to 52.068% when pulling db6a3e1 on MinXie1209:develop-0508 into c046404 on apache:develop.