#Java deadlock code

Threads causing the threads to wait for each other to release those locks. Whereas the thread which has lock on object caller2 will have to get a lock on object caller1 to call this method.īut the lock on object caller1 and caller2 are already held by respective Get a lock on object caller2 to call this method. Within call() method there is another call to a synchronized method callMe(), notice that the thread which has lock on object caller1 will have to So both threads will enter the call() method one using the lock of caller1 object and another using the lock of caller2 object. A deadlock is when two or more processes share common resources and hold some resource while waiting for another resource that is acquired by the other. As you already know that if you are using synchronized instance methods then the thread will have exclusive lock one per instance. Then call() method is called with those objects in to separate threads. Here we are creating 2 objects of class DeadLockDemo caller1Īnd caller2.

#Java deadlock code

This code may result in a deadlock for the two created threads, if you are executing this program you'll have to stop the

Output caller-1 has asked to call me caller-2 Public synchronized void call(DeadLockDemo caller) Java Deadlock scenario- Calling one synchronized method from another

See example.Let’s see example code for creation of deadlock in these scenarios–

One synchronized method is called from another synchronized method.

Deadlock in Java multi-threading environment may happen in case where.