Uses Jackson JSON serialization instead of ObjectInputStream to deserialize objects

[harshavamsi]

Description

Uses Jackson JSON serialization instead of ObjectInputStream to deserialize objects

Issues Resolved

List any issues this PR will resolve, e.g. Closes [...].

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[opensearch-trigger-bot]

The backport to 2.0 failed:

The process '/usr/bin/git' failed with exit code 128

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-2.0 2.0
# Navigate to the new working tree
pushd ../.worktrees/backport-2.0
# Create a new branch
git switch --create backport/backport-154-to-2.0
# Cherry-pick the merged commit of this pull request and resolve the conflicts
git cherry-pick -x --mainline 1 f1db6ce13c8d341fcc0ff94b3f2daae859fa8547
# Push it to GitHub
git push --set-upstream origin backport/backport-154-to-2.0
# Go back to the original working tree
popd
# Delete the working tree
git worktree remove ../.worktrees/backport-2.0

Then, create a pull request where the base branch is 2.0 and the compare/head branch is backport/backport-154-to-2.0.

[opensearch-trigger-bot]

The backport to 1.0 failed:

The process '/usr/bin/git' failed with exit code 128

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-1.0 1.0
# Navigate to the new working tree
pushd ../.worktrees/backport-1.0
# Create a new branch
git switch --create backport/backport-154-to-1.0
# Cherry-pick the merged commit of this pull request and resolve the conflicts
git cherry-pick -x --mainline 1 f1db6ce13c8d341fcc0ff94b3f2daae859fa8547
# Push it to GitHub
git push --set-upstream origin backport/backport-154-to-1.0
# Go back to the original working tree
popd
# Delete the working tree
git worktree remove ../.worktrees/backport-1.0

Then, create a pull request where the base branch is 1.0 and the compare/head branch is backport/backport-154-to-1.0.