[ISSUE #5800] Fix start producer.sh can't find java execute file

[mxsm]

Make sure set the target branch to develop

What is the purpose of the change

close #5800

Brief changelog

• Fix start producer.sh can't find java execute file

Verifying this change

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[codecov-commenter]

Codecov Report

Merging #5801 (fe79bd1) into develop (e1dfc0d) will decrease coverage by 0.00%.
The diff coverage is n/a.

@@              Coverage Diff              @@
##             develop    #5801      +/-   ##
=============================================
- Coverage      42.38%   42.37%   -0.01%     
+ Complexity      8223     8220       -3     
=============================================
  Files           1060     1060              
  Lines          73374    73374              
  Branches        9602     9602              
=============================================
- Hits           31096    31092       -4     
- Misses         38364    38367       +3     
- Partials        3914     3915       +1     

Impacted Files	Coverage Δ
...e/rocketmq/store/ha/autoswitch/EpochFileCache.java	77.08% <0.00%> (-4.17%)	⬇️
...a/org/apache/rocketmq/filter/util/BloomFilter.java	60.43% <0.00%> (-2.20%)	⬇️
...ava/org/apache/rocketmq/filter/util/BitsArray.java	58.11% <0.00%> (-1.71%)	⬇️
.../org/apache/rocketmq/store/index/IndexService.java	59.00% <0.00%> (-1.00%)	⬇️
...main/java/org/apache/rocketmq/store/CommitLog.java	65.13% <0.00%> (-0.21%)	⬇️
...a/org/apache/rocketmq/store/StoreStatsService.java	34.53% <0.00%> (ø)
...ent/impl/consumer/DefaultLitePullConsumerImpl.java	70.00% <0.00%> (+0.15%)	⬆️
...mq/store/ha/autoswitch/AutoSwitchHAConnection.java	71.62% <0.00%> (+0.27%)	⬆️
...che/rocketmq/acl/plain/PlainPermissionManager.java	78.76% <0.00%> (+0.53%)	⬆️
...he/rocketmq/client/trace/AsyncTraceDispatcher.java	83.65% <0.00%> (+1.44%)	⬆️
... and 2 more

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[ShadowySpirits]

It will get an error if which javac get nothing.

[ShadowySpirits]

Function find_java_home should be executed only if JAVA_HOME is null. Otherwise, user-specified JAVA_HOME will be overwritten.

[ni-ze]

Set your JAVA_HOME=/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.352.b08-2.al8.x86_64/jre, this error maybe resolved.

[github-actions]

This PR is stale because it has been open for 365 days with no activity. It will be closed in 3 days if no further activity occurs. If you wish not to mark it as stale, please leave a comment in this PR.

[github-actions]

This PR was closed because it has been inactive for 3 days since being marked as stale.