Additional Notes
Check-Then-Act Pattern Pitfalls?
Track: Java
Topic: Java Threading
Focus: Race Conditions
Java: Race Conditions
Answer
The pattern can fail if another thread changes the state after checking it but before acting.
Imagine checking if an item is in stock and then proceeding to purchase it. If another thread buys the item in between, the purchase might succeed incorrectly. Synchronization is necessary to ensure the Check-Then-Act operations are atomic.
Imagine checking if an item is in stock and then proceeding to purchase it. If another thread buys the item in between, the purchase might succeed incorrectly. Synchronization is necessary to ensure the Check-Then-Act operations are atomic.
Topics: Java Java Threading Race Conditions