Add meta info about project, update empty result to return 404

CODE_OF_CONDUCT.md

+# Community Code of Conduct
+Version 1.2
+August 19, 2020
+
+##Our Pledge  
+
+In the interest of fostering an open and welcoming environment, we as community members, contributors, committers, and project leaders pledge to make participation in our project and our community a harassment-free experience for everyone, regardless of age, body size, disability, ethnicity, sex characteristics, gender identity and expression, level of experience, education, socio-economic status, nationality, personal appearance, race, religion, or sexual identity and orientation.
+
+## Our Standards  
+
+Examples of behavior that contributes to creating a positive environment include:  
+
+* Using welcoming and inclusive language  
+* Being respectful of differing viewpoints and experiences  
+* Gracefully accepting constructive criticism  
+* Focusing on what is best for the community  
+* Showing empathy towards other community members  
+
+Examples of unacceptable behavior by participants include:
+
+* The use of sexualized language or imagery and unwelcome sexual attention or advances  
+* Trolling, insulting/derogatory comments, and personal or political attacks  
+* Public or private harassment  
+* Publishing others' private information, such as a physical or electronic address, without explicit permission  
+* Other conduct which could reasonably be considered inappropriate in a professional setting  
+
+## Our Responsibilities
+With the support of the Eclipse Foundation staff (the “Staff”), project committers and leaders are responsible for clarifying the standards of acceptable behavior and are expected to take appropriate and fair corrective action in response to any instances of unacceptable behavior.
+
+Project committers and leaders have the right and responsibility to remove, edit, or reject comments, commits, code, wiki edits, issues, and other contributions that are not aligned to this Code of Conduct, or to ban temporarily or permanently any contributor for other behaviors that they deem inappropriate, threatening, offensive, or harmful.
+
+## Scope  
+
+This Code of Conduct applies within all project spaces, and it also applies when an individual is representing the Eclipse Foundation project or its community in public spaces. Examples of representing a project or community include posting via an official social media account, or acting as a project representative at an online or offline event. Representation of a project may be further defined and clarified by project committers, leaders, or the EMO.
+
+## Enforcement  
+
+Instances of abusive, harassing, or otherwise unacceptable behavior may be reported by contacting the Staff at codeofconduct@eclipse.org. All complaints will be reviewed and investigated and will result in a response that is deemed necessary and appropriate to the circumstances. The Staff is obligated to maintain confidentiality with regard to the reporter of an incident. Further details of specific enforcement policies may be posted separately.
+
+Project committers or leaders who do not follow the Code of Conduct in good faith may face temporary or permanent repercussions as determined by the Staff.
+
+## Attribution
+
+This Code of Conduct is adapted from the [Contributor Covenant][homepage], version 1.4,
+available at https://www.contributor-covenant.org/version/1/4/code-of-conduct.html
+
+[homepage]: https://www.contributor-covenant.org
+
+For answers to common questions about this code of conduct, see
+https://www.contributor-covenant.org/faq
\ No newline at end of file

CONTRIBUTING.md

+# Contributing to eclipsefdn-mailing-list-api
+
+Thanks for your interest in this project.
+
+## Project description
+
+* https://gitlab.eclipse.org/eclipsefdn/it/api/eclipsefdn-mailing-list-api
+
+## Developer resources
+
+The project maintains the following source code repositories
+
+* https://gitlab.eclipse.org/eclipsefdn/it/api/eclipsefdn-mailing-list-api
+
+## Eclipse Contributor Agreement
+
+Before your contribution can be accepted by the project team contributors must
+electronically sign the Eclipse Contributor Agreement (ECA).
+
+* http://www.eclipse.org/legal/ECA.php
+
+Commits that are provided by non-committers must have a Signed-off-by field in
+the footer indicating that the author is aware of the terms by which the
+contribution has been provided to the project. The non-committer must
+additionally have an Eclipse Foundation account and must have a signed Eclipse
+Contributor Agreement (ECA) on file.
+
+For more information, please see the Eclipse Committer Handbook:
+https://www.eclipse.org/projects/handbook/#resources-commit
+
+## Contact
+
+Contact the Eclipse Foundation Webdev team via webdev@eclipse-foundation.org.

NOTICE.md

+# Notices for eclipsefdn-mailing-list-api
+
+This content is produced and maintained by the Eclipse Foundation. Trademarks are the property of their respective owners.
+
+* Project home: https://gitlab.eclipse.org/eclipsefdn/it/api/eclipsefdn-mailing-list-api
+
+## Trademarks
+
+* Eclipse® is a Trademark of the Eclipse Foundation, Inc.
+* Eclipse Foundation is a Trademark of the Eclipse Foundation, Inc.
+
+## Copyright
+
+All content is the property of the respective authors or their employers. For
+more information regarding authorship of content, please consult the listed
+source code repository logs.
+
+## Declared Project Licenses
+
+This program and the accompanying materials are made available under the terms
+of the Eclipse Public License v. 2.0 which is available at
+http://www.eclipse.org/legal/epl-2.0.
+
+SPDX-License-Identifier: EPL-2.0
+
+## Source Code
+
+The project maintains the following source code repositories:
+
+* https://gitlab.eclipse.org/eclipsefdn/it/api/eclipsefdn-mailing-list-api
+
+## Third-party Content
+
+### Quarkus
+
+* License: Apache License 2.0 (APL)
+
+### Auto-value
+
+* License: Apache License 2.0 (APL)
+
+### Guava
+
+* License: Apache License 2.0 (APL)
+

src/main/java/org/eclipsefoundation/mailing/resources/MailingListsResource.java

@@ -60,7 +60,7 @@ public class MailingListsResource {
                 }
             } catch (ResteasyWebApplicationException e) {
                 LOGGER.warn("Could not find valid user with username '{}', returning empty results", uid);
-                return Response.ok(Collections.emptyList()).build();
+                return Response.status(404).build();
             }
         }
         return Response.ok(dao.get(new RDBMSQuery<>(wrap, filters.get(MailingLists.class), params))).build();