Deadlock

Deadlock is a notorious problem in multithreaded programming, particularly in Java, and it can be a real headache if not understood properly. Imagine you have two threads trying to acquire locks on two resources, but each thread holds the lock the other needs. They end up waiting indefinitely, stuck in a standoff.

This scenario is what we call a deadlock. Understanding deadlocks is crucial for writing robust, concurrent applications and for avoiding performance pitfalls that can arise in production environments.