Deadlock Due to Inconsistent Lock Ordering in Synchronized Blocks

Under load, my application occasionally halts without exceptions or errors. Stack traces show threads waiting for locks held by each other. How can I prevent or diagnose this?

Deadlocks commonly occur when threads acquire multiple locks in inconsistent order, causing circular waits ([turn0search16]turn0search24]). Mitigations: • Enforce a consistent global ordering for lock acquisition across code paths. • Prefer ReentrantLock.tryLock(timeout, ...) to avoid infinite waiting. • Minimize the scope of synchronized blocks; avoid nested locking. • Leverage higher-level concurrency constructs like Executors, Semaphore, or StampedLock to manage coordination.

📂 Category Software Engineering → Java → Concurrency & Thread Safety / Serialization & Memory Management 📌 Suggested Tags sql Copy code java, threadlocal, memory-leak, serialization, serialVersionUID, concurrency,