• 8.1. Lock
• 8.2. Fair Lock
• 8.3. MultiLock
• 8.4. RedLock
• 8.5. ReadWriteLock
• 8.6. Semaphore
• 8.7. PermitExpirableSemaphore
• 8.8. CountDownLatch
• 8.9. Spin Lock
• 8.10. Fenced Lock