[jira] [Created] (MJAVADOC-669) Generated sources JARs contain jQuery and other MIT-licenced works without reproducing a copy of the MIT licence, same for GPL-licenced works

["Thorsten Glaser (Jira)" <ji...@apache.org>]

Thorsten Glaser created MJAVADOC-669:
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             Summary: Generated sources JARs contain jQuery and other MIT-licenced works without reproducing a copy of the MIT licence, same for GPL-licenced works
                 Key: MJAVADOC-669
                 URL: https://issues.apache.org/jira/browse/MJAVADOC-669
             Project: Maven Javadoc Plugin
          Issue Type: Bug
          Components: javadoc
    Affects Versions: 3.2.0
            Reporter: Thorsten Glaser


A sources JAR generated by the Maven Javadoc Plugin 3.2.0 contains multiple components under the MIT licence:
 * jQuery 3.5.1
 ** {{jquery/external/jquery/jquery.js}}
 ** {{jquery/jquery-3.5.1.js}} (duplicate of the above, blowing up the PKZIP archive size of the JAR, why is it included like this?)
 * JSZip 3.2.1
 ** {{jquery/jszip/dist/jszip.js}}
 ** {{jquery/jszip-utils/dist/jszip-utils-ie.js}}
 ** {{jquery/jszip-utils/dist/jszip-utils.js}}{{}}
 * jQuery UI 1.12.1
 ** {{jquery/jquery-ui.css}}
 ** {{jquery/jquery-ui.js}}
 ** {{jquery/jquery-ui.structure.css}}
 * and their respective minified versions

It also contains {{script.js}} and {{search.js}} which are GPLv2-with-Classpath-exception-licenced and refer to “as provided by Oracle in the LICENSE file that accompanied this code” but no such file accompanies said code.

There are also multiple static {{resources}} and {{jquery/images}} whose licence is not documented.

The MIT licence specifically *requires* that “The […] copyright notice and this permission notice [the licence body] shall be included in all copies or substantial portions of the Software.” The distribution PKZIP archives (JAR files) created by the Maven Javadoc Plugin violate this licence, making them not redistributable.

Similarily, the GPLv2 used by the Oracle-provided files *requires* that redistributors “give any other recipients of the Program a copy of this License along with the Program.” The “if not, write to the Free Software Foundation” comment is specifically *not sufficient* for this and only provided as fallback should distributors violate this clause, as Maven Javadoc Plugin-generated PKZIP archives do. To be effective, the Classpath exception must also be provided.
h2. Suggested fix

Include the following new files:
 * {{jquery/LICENCE}} containing the MIT licence and all respective copyright notices for the various jQuery-related projects (including those _they_ include, i.e. Sizzle, widget.js, position.js, keycode.js, unique-id.js, widgets/autocomplete.js, widgets/menu.js, pako, and possibly others)
 * {{js/LICENSE}} (creating a new subdirectory) containing the Classpath exception as provided by Oracle
 * {{COPYING}} or {{js/COPYING}} (this being the customary name for this file) containing the verbatim text of the GNU GPL version 2



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