Java Thread Programming 1.8.2-Inter-thread Commu

Missed Notification
A missed notification occurs when threadB tries to handle y threadA, but threadA is not yet waiting for the notification. in a multithreaded environment like Java, you don't have much control over which thread runs and for how long. this uncertainty can lead to a situation in which most of the time an application is run, threadA is waiting before threadB does the notification. but occasionally, threadB does the notification before threadA is waiting. this missed notification scenario can be quite dangerous.
Missed Notification indicates that thread B tries to notify thread A, but Thread A is not waiting for the Notification. This is not impossible. In a multi-threaded environment, we cannot control which thread to execute and how long it takes to execute. This uncertainty may lead to a notification before a thread waits. This is a very dangerous situation. This happens in the following program:
/*
* Created on 2005-7-14
 *
* Java Thread Programming-Paul Hyde
* Copyright? 1999 Sams Publishing
* Jonathan Q. Bo study notes
 *
*/
Package org. tju. msnrl. jonathan. thread. chapter8;
/**
* @ Author Jonathan Q. Bo from TJU MSNRL
 *
* Email: jonathan.q.bo@gmail.com
* Blog: blog.111cn.net/jonathan_q_bo
* Blog.yesky.net/jonathanundersun
 *
* Enjoy Life with Sun!
 *
*/
Public class MissedNotify {
  
Private Object proceedLock;
  
Public MissedNotify (){
      
ProceedLock = new Object ();
    }
  
Public void waitProceed () throws InterruptedException {
Print ("in waitProceed ()-begin ");
      
Synchronized (proceedLock ){
Print ("begin synchronized wait ...");