| Name | Description | Type | Package | Framework |
| Lock | Represents a lock placed on an item. | Interface | javax.jcr.lock | JCR |
| LockException | Exception thrown by when a lock-related error occurs. | Class | javax.jcr.lock | JCR |
| LockManager | This interface encapsulates methods for the management of locks. | Interface | javax.jcr.lock | JCR |