[java] How to use wait and notify in Java without IllegalMonitorStateException?

While using the wait and notify or notifyAll methods in Java the following things must be remembered:

  1. Use notifyAll instead of notify if you expect that more than one thread will be waiting for a lock.
  2. The wait and notify methods must be called in a synchronized context. See the link for a more detailed explanation.
  3. Always call the wait() method in a loop because if multiple threads are waiting for a lock and one of them got the lock and reset the condition, then the other threads need to check the condition after they wake up to see whether they need to wait again or can start processing.
  4. Use the same object for calling wait() and notify() method; every object has its own lock so calling wait() on object A and notify() on object B will not make any sense.

Examples related to java

Under what circumstances can I call findViewById with an Options Menu / Action Bar item? How much should a function trust another function How to implement a simple scenario the OO way Two constructors How do I get some variable from another class in Java? this in equals method How to split a string in two and store it in a field How to do perspective fixing? String index out of range: 4 My eclipse won't open, i download the bundle pack it keeps saying error log

Examples related to multithreading

How can compare-and-swap be used for a wait-free mutual exclusion for any shared data structure? Waiting until the task finishes What is the difference between Task.Run() and Task.Factory.StartNew() Why is setState in reactjs Async instead of Sync? What exactly is std::atomic? Calling async method on button click WAITING at sun.misc.Unsafe.park(Native Method) How to use background thread in swift? What is the use of static synchronized method in java? Locking pattern for proper use of .NET MemoryCache

Examples related to exception

Connection Java-MySql : Public Key Retrieval is not allowed How to print an exception in Python 3? ASP.NET Core Web API exception handling Catching FULL exception message How to get exception message in Python properly What does "Fatal error: Unexpectedly found nil while unwrapping an Optional value" mean? what does Error "Thread 1:EXC_BAD_INSTRUCTION (code=EXC_I386_INVOP, subcode=0x0)" mean? Argument Exception "Item with Same Key has already been added" The given key was not present in the dictionary. Which key? sql try/catch rollback/commit - preventing erroneous commit after rollback

Examples related to java-threads

How to use wait and notify in Java without IllegalMonitorStateException? "implements Runnable" vs "extends Thread" in Java