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Contributing to PrimeFaces: Terms and Conditions

Do you want to contribute your work to PrimeFaces? Well, then first and most important: THANK YOU!

Now, in order to accept your contribution, there are some terms you must expressly agree with, so please read them carefully. They might look a bit cumbersome, but they are here just in order to protect you, your contribution, and especially the project's future.

Important: submitting any contributions to the PrimeFaces project implies your full acceptance of these terms, including the "PrimeFaces Individual Contributor License Agreement" detailed at the end.

Who can contribute?

Anyone, with the unique condition that he/she must be a private individual, acting in his/her own name, and not being endorsed in their contributed work by any company or government.

Note that this condition will not only refer to the ownership of the effort invested in contributing to the project, but also to the fact that no private or public company will be mentioned as a a part of your contribution on the project's website or code, including but not limited to web/email addresses or package names.

What is the first step to be taken?

First of all, Discuss with the project members (a new thread should do) about your ideas: new features, fixes, documentation... whatever you would like to contribute to the project. Let we discuss the possibilities with you so that we make sure your contribution goes in the right direction and aligns with the project's standards, intentions and roadmap.

How will your relation with the PrimeFaces project be?

Your contributions will have the form of GitHub pull requests. Note that contributors do not have read+write (or pull+push) access to the project repositories, only project members do.

Also, please understand that not all pull requests will be accepted and merged into the project's repositories. Talking about your planned contributions with the project members before creating pull requests will maximize the possibilities of your contributions being accepted.

About the code you contribute

General guidelines:

  • Obviously, your code must both compile and work correctly. Also, the addition of any new patches to the codebase should not render it unstable in any way.
  • All your code should be easy to read and understand by a human.
  • There should be no compilation warnings at all.

Detailed Java code quality standards:

  • All your code should compile and run in Java 5.0.
  • All comments, names of classes and variables, log messages, etc. must be in English.
  • All .java files must include the standard PrimeFaces copyright header.
  • All your code should follow the Java Code Conventions regarding variable/method/class naming.
  • Maximum line size is 160 characters.
  • Indentation should be made with 4 spaces, not tabs.
  • Line feeds should be UNIX-like (\n).
  • All .java source files should be pure ASCII. All .properties files should be ISO-8859-1.
  • Number autoboxing and/or autounboxing is forbidden.
  • Every class should define a constructor, even if it is the default one, and include a call to super().
  • Include /* ... */ comments for every algorithm you develop with a minimum of complexity. "Minimum of complexity" usually means you had to take some design decisions in order to write it the way you did. Do not write obvious comments.
  • All public methods and classes directly available to users (i.e. public) should have comprehensive javadoc.

Detailed HTML/XML code quality standards:

  • All tags, CSS styles, file names, etc. must be in English.
  • Lower case should be prefered for HTML/XML artifacts. The only exceptions are DOCTYPE and CDATA clauses.
  • All HTML code should be XML-valid (i.e. all tags should be closed, attributes surrounded by commas, etc.)
  • Maximum line size is 160 characters.
  • Indentation should be made with 4 spaces, not tabs.
  • Line feeds should be UNIX-like (\n).
  • All .html and .xml source files should be pure ASCII, even if content-type is set to a different encoding.
  • All XHTML self-closing (minimized) tags should have a space before /> (the XHTML standards say so!).
  • All inline scripts must be enclosed inside a commented <![CDATA[...]]> block.

About the documentation/articles you contribute

Note the following only applies to documentation/articles meant to be published at the PrimeFaces website.

  • All documentation artifacts, including articles, must be written in correct English.
  • Your name and email will be displayed as "author" of any documentation artifacts you create.
  • Topic and text structure must be first discussed and agreed upon with the project members.
  • Project members may edit and make small changes to your texts --of which you will be informed-- before publishing them.
  • Format and visual styles must adhere to the PrimeFaces website standards, of which you will be informed by the project members.

Pay special attention to this

All PrimeFaces software is distributed under the Apache License 2.0 open source license, and your contributions will be licensed in the same way.

If you work for a company which, by the way or place in which your code was written, by your contract terms or by the laws in your country, could claim any rights (including but not limited to intellectual or industrial property) over your contributed code, you will have to send the project members (either by email from your authorised superiors or by signed fax), a statement indicating that your company agrees with the terms explained in this page, and that it both authorises your contribution to PrimeFaces and states that will never claim any kind of rights over it.

PrimeFaces Individual Contributor License Agreement

This contributor agreement ("Agreement") documents the rights granted by contributors to the PrimeFaces Project.

This is a legally binding document, so please read it carefully before agreeing to it. The Agreement may cover more than one software project managed by PrimeFaces.

###1. Definitions

  • "PrimeFaces" means the "PrimeFaces Project organization and members".
  • "You" means the individual who submits a Contribution to PrimeFaces.
  • "Contribution" means any work of authorship that is submitted by you to PrimeFaces in which you own or assert ownership of the Copyright.
  • "Copyright" means all rights protecting works of authorship owned or controlled by you, including copyright, moral and neighboring rights, as appropriate, for the full term of their existence including any extensions by you.
  • "Material" means the work of authorship which is made available by PrimeFaces to third parties. When this Agreement covers more than one software project, the Material means the work of authorship to which the Contribution was submitted. After you submit the Contribution, it may be included in the Material.
  • "Submit" means any form of electronic, verbal, or written communication sent to PrimeFaces or its representatives, including but not limited to electronic mailing lists, source code control systems, and issue tracking systems that are managed by, or on behalf of, PrimeFaces for the purpose of discussing and improving the Material, but excluding communication that is conspicuously marked or otherwise designated in writing by you as _"Not a Contribution."
  • "Submission Date" means the date on which you submit a Contribution to PrimeFaces.
  • "Effective Date" means the date you execute this agreement or the date You first submit a Contribution to PrimeFaces, whichever is earlier.

###2. Grant of Rights

####2.1. Copyright License

(a) You retain ownership of the copyright in your Contribution and have the same rights to use or
    license the Contribution which you would have had without entering into the agreement.
(b) To the maximum extent permitted by the relevant law, you grant to PrimeFaces a perpetual, worldwide,
    non-exclusive, transferable, royalty-free, irrevocable license under the copyright covering the
    Contribution, with the right to sublicense such rights through multiple tiers of sublicensees, to
    reproduce, modify, display, perform and distribute the Contribution as part of the Material; provided
    that this license is conditioned upon compliance with Section 2.3.

####2.2 Patent License

For patent claims including, without limitation, method, process, and apparatus claims which you own, control or have the right to grant, now or in the future, you grant to PrimeFaces a perpetual, worldwide, non-exclusive, transferable, royalty-free, irrevocable patent license, with the right to sublicense these rights to multiple tiers of sublicensees, to make, have made, use, sell, offer for sale, import and otherwise transfer the Contribution and the Contribution in combination with the Material (and portions of such combination). This license is granted only to the extent that the exercise of the licensed rights infringes such patent claims; and provided that this license is conditioned upon compliance with Section 2.3.

####2.3 Outbound License

As a condition on the grant of rights in Sections 2.1 and 2.2, PrimeFaces agrees to license the Contribution only under the terms of the Apache License 2.0 (including any right to adopt any future version of this license if permitted).

####2.4 Moral Rights

If moral rights apply to the Contribution, to the maximum extent permitted by law, you waive and agree not to assert such moral rights against PrimeFaces or its successors in interest, or any of our licensees, either direct or indirect.

####2.5 PrimeFaces Rights

You acknowledge that PrimeFaces is not obligated to use your Contribution as part of the Material and may decide to include any Contributions PrimeFaces considers appropriate.

####2.6 Reservation of Rights

Any rights not expressly assigned or licensed under this section are expressly reserved by you.

###3. Agreement

You confirm that:

(a) You have the legal authority to enter into this Agreement.
(b) You own the Copyright and patent claims covering the Contribution which are required to grant
    the rights under Section 2.
(c) The grant of rights under Section 2 does not violate any grant of rights which you have made to
    third parties, including your employer. If you are an employee, you have had your employer approve
    this Agreement. If you are less than eighteen years old, please have your parents or guardian 
    sign the Agreement.

###4. Disclaimer

EXCEPT FOR THE EXPRESS WARRANTIES IN SECTION 3, THE CONTRIBUTION IS PROVIDED "AS IS". MORE PARTICULARLY, ALL EXPRESS OR IMPLIED WARRANTIES INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE EXPRESSLY DISCLAIMED BY YOU TO PrimeFaces AND BY PrimeFaces TO YOU. TO THE EXTENT THAT ANY SUCH WARRANTIES CANNOT BE DISCLAIMED, SUCH WARRANTY IS LIMITED IN DURATION TO THE MINIMUM PERIOD PERMITTED BY LAW.

###5. Consequential Damage Waiver

TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, IN NO EVENT WILL YOU OR PrimeFaces BE LIABLE FOR ANY LOSS OF PROFITS, LOSS OF ANTICIPATED SAVINGS, LOSS OF DATA, INDIRECT, SPECIAL, INCIDENTAL, CONSEQUENTIAL AND EXEMPLARY DAMAGES ARISING OUT OF THIS AGREEMENT REGARDLESS OF THE LEGAL OR EQUITABLE THEORY (CONTRACT, TORT OR OTHERWISE) UPON WHICH THE CLAIM IS BASED.

###6. Miscellaneous

6.1 This Agreement will be governed by and construed in accordance with the laws of Spain excluding its
    conflicts of law provisions. Under certain circumstances, the governing law in this section might be
    superseded by the United Nations Convention on Contracts for the International Sale of Goods ("UN
    Convention") and the parties intend to avoid the application of the UN Convention to this Agreement
    and, thus, exclude the application of the UN Convention in its entirety to this Agreement.
6.2 This Agreement sets out the entire agreement between you and PrimeFaces for your Contributions to
    PrimeFaces and overrides all other agreements or understandings.
6.3 If You or PrimeFaces assign the rights or obligations received through this Agreement to a third party, 
    as a condition of the assignment, that third party must agree in writing to abide by all the rights and
    obligations in the Agreement.
6.4 The failure of either party to require performance by the other party of any provision of this
    Agreement in one situation shall not affect the right of a party to require such performance at any time
    in the future. A waiver of performance under a provision in one situation shall not be considered a
    waiver of the performance of the provision in the future or a waiver of the provision in its entirety.
6.5 If any provision of this Agreement is found void and unenforceable, such provision will be
    replaced to the extent possible with a provision that comes closest to the meaning of the original
    provision and which is enforceable. The terms and conditions set forth in this Agreement shall apply
    notwithstanding any failure of essential purpose of this Agreement or any limited remedy to the
    maximum extent possible under law.