Threading in Java: How to lock an object?

Question

The following Function is executing in its own thread:

private void doSendData()
{
    try {

           //writeToFile(); // just a temporary location of a c         


        

Answer 1

In order to call wait() on an object, you have to hold the synchronized lock on that object (though the lock is actually released while the thread is waiting):

synchronized (serverAddr) {
  serverAddr.wait();
}

I have to admit that why you're wanting to do this baffles me in this case...