[fix] Restored method as deprecated in AbstractMetadataStore

[merlimat]

Motivation

A change in #21068 has renamed a protected methods in AbstractMetadataStore. This was done in 3.1 and 3.2 as well as master branch.

The problem with this change is that external metadata provider plugins cannot easily target 3.0/3.1 release because of the method name change. We shouldn't be renaming methods part of the plugin APIs. Instead we can mark them as deprecated and maintain compatibility.

Modifications

Verifying this change

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This change is a trivial rework / code cleanup without any test coverage.

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This change is already covered by existing tests, such as (please describe tests).

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This change added tests and can be verified as follows:

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• Added integration tests for end-to-end deployment with large payloads (10MB)
• Extended integration test for recovery after broker failure

Does this pull request potentially affect one of the following parts:

If the box was checked, please highlight the changes

• Dependencies (add or upgrade a dependency)
• The public API
• The schema
• The default values of configurations
• The threading model
• The binary protocol
• The REST endpoints
• The admin CLI options
• The metrics
• Anything that affects deployment

Documentation

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Matching PR in forked repository

PR in forked repository:

[codelipenghui]

@merlimat

We should also add annotations

@InterfaceAudience.Public
@InterfaceStability.Stable

[nodece]

Please add a comment.

[codecov-commenter]

Codecov Report

❌ Patch coverage is 0% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 73.61%. Comparing base (22838ea) to head (531d8ff).
⚠️ Report is 1340 commits behind head on master.

Files with missing lines	Patch %	Lines
...he/pulsar/metadata/impl/AbstractMetadataStore.java	0.00%	2 Missing ⚠️

Additional details and impacted files

@@              Coverage Diff              @@
##             master   #21950       +/-   ##
=============================================
+ Coverage     36.46%   73.61%   +37.15%     
- Complexity    12390    32439    +20049     
=============================================
  Files          1725     1861      +136     
  Lines        131701   138676     +6975     
  Branches      14401    15182      +781     
=============================================
+ Hits          48027   102093    +54066     
+ Misses        77254    28700    -48554     
- Partials       6420     7883     +1463     

Flag	Coverage Δ
inttests	24.08% <0.00%> (-0.03%)	⬇️
systests	23.65% <0.00%> (-0.02%)	⬇️
unittests	72.90% <0.00%> (+40.85%)	⬆️

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Files with missing lines	Coverage Δ
...he/pulsar/metadata/impl/AbstractMetadataStore.java	84.55% <0.00%> (+30.48%)	⬆️

... and 1442 files with indirect coverage changes

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[Technoboy-]

Since #21068 does't cherry-pick to branch-3.1, so we remove the label release/3.1.3 fro this patch