What must developers do after creating a Context Contributor?

After creating a Context Contributor, developers are required to add a unique package name in the module's src folder. This is crucial because the package name helps to prevent conflicts with other modules and provides a namespace that differentiates this module from others in the system. A unique package name also aids in the proper organization of the code within the module, making it easier for developers and maintainers to navigate and understand the structure of the project.

The other options do not directly follow the process of creating a Context Contributor. For instance, packaging the module into a JAR file is typically a later step that would occur when preparing for deployment but is not an immediate requirement after creating the contributor. Similarly, establishing a database connection is not specifically tied to the creation of a Context Contributor unless it is explicitly part of the contributor's functionality. Lastly, deploying the application to the server is also a step that follows the completion of various configurations and is not an immediate action tied to just creating a Context Contributor. Therefore, adding a unique package name is a critical step that helps establish the module's identity in the codebase and in the broader context of a Liferay application.