Fix issues in indices API - java-client+recordings

[Anaethelion]

Addresses most of #1881

[github-actions]

Following you can find the validation results for the APIs you have changed.

API	Status	Request	Response
indices.add_block	🟢	2/2	2/2
indices.analyze	🟢	20/20	20/20
indices.clear_cache	🟢	4/4	4/4
indices.clone	🟢	6/6	6/6
indices.close	🟢	43/43	43/43
indices.create_data_stream	🟢	25/25	25/25
indices.create	🔴	734/737	737/737
indices.data_streams_stats	🟢	4/4	4/4
indices.delete_alias	🟢	15/15	15/15
indices.delete_data_stream	🟢	27/27	27/27
indices.delete_index_template	🟢	1/1	1/1
indices.delete_template	🟢	9/9	9/9
indices.delete	🟢	104/104	104/104
indices.disk_usage	🟢	5/5	5/5
indices.downsample	⚪	Missing test	Missing test
indices.exists_alias	🟢	36/36	36/36
indices.exists_index_template	⚪	Missing test	Missing test
indices.exists_template	🟢	15/15	15/15
indices.exists	🟢	39/39	39/39
indices.field_usage_stats	🟢	5/5	5/5
indices.flush	🟢	9/9	9/9
indices.forcemerge	🔴	4/4	3/4
indices.get_alias	🔴	82/82	70/82
indices.get_data_stream	🟢	12/12	12/12
indices.get_field_mapping	🔴	15/15	14/15
indices.get_index_template	🔴	16/16	14/16
indices.get_mapping	🟢	60/60	60/60
indices.get_settings	🔴	54/54	47/54
indices.get_template	🟢	30/30	30/30
indices.get	🟢	52/52	52/52
indices.migrate_to_data_stream	⚪	Missing test	Missing test
indices.modify_data_stream	⚪	Missing test	Missing test
indices.open	🟢	17/17	17/17
indices.promote_data_stream	⚪	Missing test	Missing test
indices.put_alias	🟢	55/55	55/55
indices.put_index_template	🔴	37/38	38/38
indices.put_mapping	🔴	73/74	74/74
indices.put_settings	🔴	52/55	55/55
indices.put_template	🔴	40/46	46/46
indices.recovery	🟢	11/11	11/11
indices.refresh	🟢	199/199	199/199
indices.reload_search_analyzers	🟢	2/2	2/2
indices.resolve_index	🟢	6/6	6/6
indices.rollover	🔴	22/26	26/26
indices.segments	🔴	6/6	4/6
indices.shard_stores	🔴	5/5	2/5
indices.shrink	🟢	5/5	5/5
indices.simulate_index_template	🟢	6/6	6/6
indices.simulate_template	🟢	4/4	4/4
indices.split	🟢	11/11	11/11
indices.stats	🟢	83/83	82/82
indices.unfreeze	🟢	1/1	1/1
indices.update_aliases	🟢	22/22	22/22
indices.validate_query	🟢	7/7	7/7

You can validate these APIs yourself by using the make validate target.

[swallez]

LGTM!

[github-actions]

The backport to 7.17 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-7.17 7.17
# Navigate to the new working tree
cd .worktrees/backport-7.17
# Create a new branch
git switch --create backport-1941-to-7.17
# Cherry-pick the merged commit of this pull request and resolve the conflicts
git cherry-pick --mainline 1 9ea732335c231fdb5a1558220d5948f4552a897f
# Push it to GitHub
git push --set-upstream origin backport-1941-to-7.17
# Go back to the original working tree
cd ../..
# Delete the working tree
git worktree remove .worktrees/backport-7.17

Then, create a pull request where the base branch is 7.17 and the compare/head branch is backport-1941-to-7.17.

[github-actions]

The backport to 8.5 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-8.5 8.5
# Navigate to the new working tree
cd .worktrees/backport-8.5
# Create a new branch
git switch --create backport-1941-to-8.5
# Cherry-pick the merged commit of this pull request and resolve the conflicts
git cherry-pick --mainline 1 9ea732335c231fdb5a1558220d5948f4552a897f
# Push it to GitHub
git push --set-upstream origin backport-1941-to-8.5
# Go back to the original working tree
cd ../..
# Delete the working tree
git worktree remove .worktrees/backport-8.5

Then, create a pull request where the base branch is 8.5 and the compare/head branch is backport-1941-to-8.5.

[github-actions]

The backport to 7.17 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-7.17 7.17
# Navigate to the new working tree
cd .worktrees/backport-7.17
# Create a new branch
git switch --create backport-1941-to-7.17
# Cherry-pick the merged commit of this pull request and resolve the conflicts
git cherry-pick --mainline 1 9ea732335c231fdb5a1558220d5948f4552a897f
# Push it to GitHub
git push --set-upstream origin backport-1941-to-7.17
# Go back to the original working tree
cd ../..
# Delete the working tree
git worktree remove .worktrees/backport-7.17

Then, create a pull request where the base branch is 7.17 and the compare/head branch is backport-1941-to-7.17.