Add copyright line to license headers

[dbwiddis]

Description

Adds copyright line to conform license header to format per https://github.com/opensearch-project/.github/blob/main/CONTRIBUTING.md#java

Issues Resolved

Fixes #194

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[dbwiddis]

I should probably make changes to the workflow_run trickery from #193. While the gradle check is correctly triggered,

• it does not show up in the checks associated with this PR
• the pull_request and pull_request_target triggers are redundant and it runs twice.

[peternied]

You can use a smaller license header, while you are doing so I'd recommend the tiny one [1] [2]

/*
 * Copyright OpenSearch Contributors
 * SPDX-License-Identifier: Apache-2.0
 */

[1] opensearch-project/OpenSearch#4657
[2] opensearch-project/alerting#136 (comment)

[owaiskazi19]

We should wait for gradle check to run on this PR before merging it.

[dbwiddis]

Flipping this to draft to discuss @peternied comment. I went searching everywhere for that official guidance, and it's very confusing.

Why is the contributing document not up to date with the guidance in this comment from @AMoo-Miki?

What is the scope of "like this one" mentioned in that comment?

Where is the official guidance if not at the CONTRIBUTING link cited above?

[dbwiddis]

I believe the guidance linked by @peternied is outdated as of opensearch-project/.github#76 which updated to the version I'm using.

I filed an issue to request final clarification: opensearch-project/.github#98

[dbwiddis]

We should wait for gradle check to run on this PR before merging it.

Gradle check ran, but you can't see it. 😁 See #197 so that stops happening.

I think the header is the correct one and this PR will stand as-is, but will wait for confirmation on the above issue I filed before flipping this back to review. Only need one spammy header update.

[joshpalis]

Thanks Dan for taking care of this!

[peternied]

I think the header is the correct one and this PR will stand as-is, but will wait for confirmation on the above issue I filed before flipping this back to review. Only need one spammy header update.

@joshpalis I don't think Dan wanted this merged yet. Maybe next time we should add a Changes Requested to ensure enthusiastic merging doesn't happen.