# Contributor License Agreement

> **Maintainer note — this needs your review before it is relied upon.**
> This document is adapted from the [Apache Software Foundation Individual
> Contributor License Agreement v2.0](https://www.apache.org/licenses/icla.pdf),
> the standard instrument for Apache-2.0 projects. It has **not** been reviewed
> by a lawyer on this project's behalf. Two placeholders must be filled in
> before it is authoritative — the legal entity named as **the Project Owner**,
> and the contact address in "Notifying us". If XERJ is ever to be relicensed or
> offered commercially, have counsel confirm this text grants what you need.

Thank you for contributing to XERJ. This agreement clarifies the intellectual
property licence granted with Contributions from any person or entity, and
protects both you and the project. It does **not** change your rights to use
your own Contributions for any other purpose.

You keep the copyright in everything you contribute. This agreement gives the
Project Owner permission to use and redistribute it; it is not an assignment.

## 1. Definitions

**"You"** means the copyright owner, or the legal entity authorised by the
copyright owner, entering into this agreement.

**"Contribution"** means any original work of authorship, including any
modification of or addition to an existing work, that is intentionally
submitted by You to the Project Owner for inclusion in, or documentation of,
any of the products owned or managed by the Project Owner.

**"Submitted"** means any form of electronic, verbal, or written communication
sent to the Project Owner or its representatives, including but not limited to
communication on electronic mailing lists, source code control systems, and
issue tracking systems that are managed by, or on behalf of, the Project Owner
for the purpose of discussing and improving the Work — but excluding
communication that is conspicuously marked, or otherwise designated in writing
by You, as "Not a Contribution".

## 2. Grant of Copyright Licence

Subject to the terms and conditions of this agreement, You grant to the Project
Owner and to recipients of software distributed by the Project Owner a
perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable
copyright licence to reproduce, prepare derivative works of, publicly display,
publicly perform, sublicense, and distribute Your Contributions and such
derivative works.

## 3. Grant of Patent Licence

Subject to the terms and conditions of this agreement, You grant to the Project
Owner and to recipients of software distributed by the Project Owner a
perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable
(except as stated in this section) patent licence to make, have made, use,
offer to sell, sell, import, and otherwise transfer the Work.

This licence applies only to those patent claims licensable by You that are
necessarily infringed by Your Contribution alone, or by combination of Your
Contribution with the Work to which it was Submitted.

If any entity institutes patent litigation against You or any other entity
alleging that Your Contribution, or the Work to which You have contributed,
constitutes direct or contributory patent infringement, then any patent
licences granted to that entity under this agreement for that Contribution or
Work terminate as of the date such litigation is filed.

## 4. Your representations

You represent that:

1. You are legally entitled to grant the above licences.
2. If your employer has rights to intellectual property that you create, you
   have received permission to make the Contribution on behalf of that
   employer, or your employer has waived such rights, or your employer has
   executed a separate corporate CLA with the Project Owner.
3. Each of Your Contributions is Your original creation. You may submit work
   that is not your original creation, provided you identify it clearly —
   see section 6.
4. You are not expected to provide support for Your Contributions, except to
   the extent You desire to. Unless required by applicable law or agreed to in
   writing, You provide Your Contributions on an **"AS IS" BASIS, WITHOUT
   WARRANTIES OR CONDITIONS OF ANY KIND**, either express or implied,
   including, without limitation, any warranties or conditions of TITLE,
   NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A PARTICULAR PURPOSE.

## 5. Generative AI

You may use AI assistance to prepare a Contribution. If you do, you remain
responsible for the representations in section 4 — in particular that you are
entitled to grant the licences above for the entire Contribution, including any
material an assistant reproduced from elsewhere. If you cannot make that
representation for some part, identify it under section 6.

## 6. Third-party work

Should You wish to submit work that is not Your original creation, You may
submit it separately from any Contribution, identifying the complete details of
its source and of any licence or other restriction of which you are personally
aware, and conspicuously marking the work as
`Submitted on behalf of a third-party: [named here]`.

## 7. Notifying us

You agree to notify the Project Owner of any facts or circumstances of which
you become aware that would make these representations inaccurate in any
respect. Contact: **[MAINTAINER CONTACT — fill in]**.

---

## How to sign

Signing is a one-time act per contributor, not per pull request.

1. Read this document.
2. Open a pull request adding your GitHub username to
   [`.contributors`](./.contributors).

That pull request **is** your signature: it is made from your own GitHub
account, and its commit history is the durable record of your agreement. Please
add nothing to it but your username.

3. Once it is merged, comment `@cla-bot check` on your original pull request and
   the CLA check will go green.

If you contribute on behalf of an employer that requires a corporate agreement,
say so on your pull request before signing individually.