Concurrency basics · interview question
Why is using nested synchronized blocks with different locks risky in practice?
Multiple choiceEasychapter-15-curatedpremiumconcurrencysynchronized-and-locks
Answer and explanation
Correct answer
D. Deadlock
Why
Nested synchronized blocks on different locks can lead to deadlocks if threads acquire the locks in different orders. This occurs when each thread is holding one lock and waiting for the other, causing a permanent block.
Test yourself on Concurrency basics
A free test with instant, explained results. No account needed.
More Concurrency basics questions
- How can you avoid deadlocks when using multiple ReentrantLocks in a method?
- What does the 'volatile' keyword guarantee in Java?
- Why might using 'volatile' alone be insufficient for ensuring thread safety when updating a shared counter?
- Consider the following code snippet. What issue might occur if 'flag' is not declared as 'volatile'?
- When using synchronized blocks, how can you ensure fairness among threads?
- How would you explain a common use case for 'volatile' variables in an interview?