| ConstantsManager | Manager for issue types, statuses, priorities and resolutions. |
| CustomConfigHandler<B> | TWENTY-318: Moved this from multitenant |
| DatabaseConfigurationService | Service for reading database configuration properties. |
| Feature | A switchable feature identity, can be enabled or disabled with FeatureManager. |
| FeatureFlagProvider | A plugin can implement a provider that gives off a set of feature flags. |
| FeatureManager | Component responsible for providing information whether certain features in JIRA are enabled or disabled. |
| FeatureStore | |
| IndexTask | Interface that should be implemented by index task context classes. |
| InstanceFeatureManager | Provides information about features enabled for current instance. |
| IssueConstantFactory | Converts issue constant DTOs into their associated objects. |
| IssueTypeManager | Manager for IssueTypes. |
| IssueTypePermissionService | |
| IssueTypeService | Service for managing issue types. |
| LocaleManager | Provides Locale information for this JIRA instance. |
| PriorityManager | Manager for Priorityies |
| ReindexMessageManager | Manages messages for JIRA's administration section that inform users of the need to reindex due to configuration changes. |
| ResolutionManager | Manager for Resolutions. |
| StatusCategoryManager | Manager for StatusCategoryies. |
| StatusManager | Manager for Statuses. |
| SubTaskManager | Manages SubTasks - issues that are "part of" other issues. |
| ConstantsManager.CONSTANT_TYPE | |
| CoreFeatures | Core manipulable JIRA features. |
| IssueTypeService.IssueTypeCreateInput.Type |
