What type of modules are Context Contributors in Liferay?

Context Contributors in Liferay are indeed recognized as OSGi modules generated from Blade CLI, which is an integral part of Liferay's architecture. This type of module leverages the OSGi (Open Service Gateway Initiative) framework, facilitating modular development and management of applications. OSGi modules allow for dynamic updates, modularity, and better resource management, making them particularly well-suited for the extensibility and customizability that Liferay aims to provide.

When created through the Blade CLI, these modules come with the necessary framework to register context contributors efficiently. Context contributors in Liferay specifically manage contributing contextual information for various components, ensuring that the user experience is tailored based on specific states or conditions, like the current user's information or the particular context of a page.

The other options present various types of components that, while used in web development or Liferay, do not appropriately classify context contributors. For instance, focusing solely on Java classes misses the broader modular framework provided by OSGi, while CSS modules and HTML templates do not encapsulate the functionality of context contributors, which is inherently tied to the OSGi architecture.