Fixing main branch build due to backward incompatible changes added in OpenSearch core

[navneet1v]

Description

Fixing main branch build due to backward incompatible changes added in OpenSeach core via PR: opensearch-project/OpenSearch#8157

Issues Resolved

NA

Check List

• New functionality includes testing.
  • All tests pass
• New functionality has been documented.
  • New functionality has javadoc added
• Commits are signed as per the DCO using --signoff

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.
For more information on following Developer Certificate of Origin and signing off your commits, please check here.

[codecov]

Codecov Report

Merging #981 (d46285e) into main (54a75c1) will decrease coverage by 0.24%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##               main     #981      +/-   ##
============================================
- Coverage     85.37%   85.13%   -0.24%     
+ Complexity     1146     1141       -5     
============================================
  Files           154      154              
  Lines          4683     4683              
  Branches        423      423              
============================================
- Hits           3998     3987      -11     
- Misses          495      504       +9     
- Partials        190      192       +2     

Impacted Files	Coverage Δ
...xception/DeleteModelWhenInTrainStateException.java	100.00% <ø> (ø)
...ava/org/opensearch/knn/index/KNNMethodContext.java	92.50% <ø> (ø)
...g/opensearch/knn/index/MethodComponentContext.java	91.13% <ø> (ø)
...rg/opensearch/knn/index/query/KNNQueryBuilder.java	84.21% <ø> (ø)
...rc/main/java/org/opensearch/knn/indices/Model.java	83.92% <ø> (ø)
...ava/org/opensearch/knn/indices/ModelGraveyard.java	88.50% <ø> (ø)
...java/org/opensearch/knn/indices/ModelMetadata.java	97.19% <ø> (ø)
...in/java/org/opensearch/knn/indices/ModelState.java	89.47% <ø> (ø)
...main/java/org/opensearch/knn/plugin/KNNPlugin.java	100.00% <ø> (ø)
...ensearch/knn/plugin/rest/RestKNNWarmupHandler.java	100.00% <ø> (ø)
... and 40 more

... and 2 files with indirect coverage changes

[vamshin]

LGTM! Thanks

[opensearch-trigger-bot]

The backport to 2.x failed:

The process '/usr/bin/git' failed with exit code 1

To backport manually, run these commands in your terminal:

# Fetch latest updates from GitHub
git fetch
# Create a new working tree
git worktree add .worktrees/backport-2.x 2.x
# Navigate to the new working tree
cd .worktrees/backport-2.x
# Create a new branch
git switch --create backport/backport-981-to-2.x
# Cherry-pick the merged commit of this pull request and resolve the conflicts
git cherry-pick -x --mainline 1 98b62183c878cc0334453ebc6947cb9424991658
# Push it to GitHub
git push --set-upstream origin backport/backport-981-to-2.x
# Go back to the original working tree
cd ../..
# Delete the working tree
git worktree remove .worktrees/backport-2.x

Then, create a pull request where the base branch is 2.x and the compare/head branch is backport/backport-981-to-2.x.