Atlassian JIRA
| ExtendedPreferences | Adding the abilities to store, retrieve text from property set and to check if preference is stored at all |
| PreferenceKeys | Keys used when storing user preferences. |
| UserPreferencesManager | A simple manager for retrieving, caching and updating user preferences objects. |
| DefaultUserPreferencesManager | A simple implementation to cache user preferences objects. |
| JiraUserPreferences | The JIRA implementation atlassian-core's Preferences. |
| MockUserPreferencesManager |