How dead lock situation occurs in java and how you can identify it?

Deadlock is a situation that occurs when the same resource is required by two processes. This situation occurs in multithreading when one thread holds a resource which is required by the second thread and second thread holds a resource which is required by the first thread. To identify the deadlock, we can use the jConsole/VisualVM, it will show exactly which threads are getting locked and on which object.