IllegalMonitorStateException on wait() call

by

You need to be in a synchronized block in order for Object.wait() to work.

Also, I recommend looking at the concurrency packages instead of the old school threading packages. They are safer and way easier to work with.

EDIT

I assumed you meant Object.wait() as your exception is what happens when you try to gain access without holding the objects lock.

More Related Contents:

  1. How can I get my threaded program to print specific output
  2. Waiting for multiple SwingWorkers
  3. Why must wait() always be in synchronized block
  4. wait until all threads finish their work in java
  5. How to wait for a number of threads to complete?
  6. Java Wait for thread to finish
  7. Difference between WAIT and BLOCKED thread states
  8. Why are wait() and notify() declared in Java’s Object class?
  9. How can the wait() and notify() methods be called on Objects that are not threads?
  10. How to wait for all tasks in an ThreadPoolExecutor to finish without shutting down the Executor?
  11. Difference between “wait()” vs “sleep()” in Java
  12. Java : Does wait() release lock from synchronized block
  13. Difference between Synchronized block with wait/notify and without them?
  14. Concept behind putting wait(),notify() methods in Object class [duplicate]
  15. What does ‘synchronized’ mean?
  16. Should I actually remove the ValueEventListener?
  17. Why is creating a Thread said to be expensive?
  18. Java Thread Garbage collected or not
  19. Synchronization vs Lock
  20. What is the difference between atomic / volatile / synchronized?
  21. Waiting on a list of Future
  22. Why not to start a thread in the constructor? How to terminate?
  23. Thread Safe singleton class
  24. How to solve the “Double-Checked Locking is Broken” Declaration in Java?
  25. In Java critical sections, what should I synchronize on?
  26. Java’s Fork/Join vs ExecutorService – when to use which?
  27. Warning message “uses or overrides a deprecated API” encountered during code compilation
  28. Why single thread is faster than multithreading in Java?
  29. How to restart thread in java? [duplicate]
  30. Random over ThreadLocalRandom

Leave a Comment