Compare strings with equals() instead of ==

[dk2k]

No description provided.

[jainankitk]

@dk2k - The change looks fine. Can you add the description template and CHANGELOG description? Also, all commits need to signed off for DCO check

DCO failing

[github-actions]

✅ Gradle check result for 1a355fd: SUCCESS

[codecov]

Codecov Report

Attention: Patch coverage is 20.00000% with 4 lines in your changes missing coverage. Please review.

Project coverage is 71.86%. Comparing base (abb1041) to head (1a355fd).
Report is 312 commits behind head on main.

Files with missing lines	Patch %	Lines
...earch/suggest/phrase/NoisyChannelSpellChecker.java	0.00%	0 Missing and 2 partials ⚠️
...h/common/lucene/search/MultiPhrasePrefixQuery.java	0.00%	0 Missing and 1 partial ⚠️
...ons/bucket/composite/UnsignedLongValuesSource.java	0.00%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##               main   #15356      +/-   ##
============================================
- Coverage     71.93%   71.86%   -0.07%     
+ Complexity    63223    63189      -34     
============================================
  Files          5214     5214              
  Lines        295938   295938              
  Branches      42754    42754              
============================================
- Hits         212876   212687     -189     
- Misses        65601    65819     +218     
+ Partials      17461    17432      -29     

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[dblock]

I think for something like this we can skip-changelog.

[opensearch-trigger-bot]

This PR is stalled because it has been open for 30 days with no activity.

[dbwiddis]

Closing as this is duplicated by #15369