[ISSUE #9125]Fix: array out-of-bounds exceptions caused by messages not present

[3424672656]

Which Issue(s) This PR Fixes

Fixes #9125

Brief Description

How Did You Test This Change?

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 16.66667% with 5 lines in your changes missing coverage. Please review.

Project coverage is 47.98%. Comparing base (119a0be) to head (09d2315).
Report is 1 commits behind head on develop.

Files with missing lines	Patch %	Lines
...ache/rocketmq/tieredstore/file/FlatAppendFile.java	0.00%	2 Missing and 1 partial ⚠️
...e/rocketmq/tieredstore/file/FlatCommitLogFile.java	33.33%	2 Missing ⚠️

Additional details and impacted files

@@              Coverage Diff              @@
##             develop    #9126      +/-   ##
=============================================
- Coverage      48.11%   47.98%   -0.13%     
+ Complexity     12086    12050      -36     
=============================================
  Files           1320     1320              
  Lines          92840    92852      +12     
  Branches       11898    11899       +1     
=============================================
- Hits           44670    44556     -114     
- Misses         42671    42785     +114     
- Partials        5499     5511      +12     

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