default Collection<Form> getUserPreferenceAttributes() {

        // By default, a user context does not expose any preference user attributes
        return Collections.emptyList();

    }
Retrieves a collection of user attributes, specific to the user preferences
page in the UI. Unlike standard user attributes, these should be self-editable.

@return
    A collection of form of user attributes, specific to the user preferences
    page in the UI.
guacamole-ext/src/main/java/org/apache/guacamole/net/auth/UserContext.java