多线程的Wait返回它等待的下方

1. 多线程的Wait返回它等待的下方。
   
    Java Code 

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   package org.vocano.java.tst; class ThreadDemo {      public  static  void main( String[] args) {         Buffer buf =  new Buffer();          new Producer(buf).start();          new Consumer(buf).start();          new Consumer(buf).start();     } } class Producer  extends Thread {      private Buffer buf;      public Producer(Buffer buf) {          this.buf = buf;     }      public  void run() {          boolean odd = false;          while(true) {              synchronized(buf) {                 System.out.println( "Producer get lock!");                  if(buf.bFull) {                     System.out.println( "Producer wait!!!");                      try{buf.wait();} catch(Exception e) {}                     System.out.println( "Producer wait return return return !!!!!!! ");                 }                  if(odd) {                     buf.name= "jack";                          try{Thread.sleep( 100);} catch(Exception e) {}                     buf.sex= "female";                 }  else {                     buf.name= "lucy";                          try{Thread.sleep( 100);} catch(Exception e) {}                     buf.sex= "male";                 }                 buf.bFull = true;                 buf.notify();                 System.out.println( "Producer release lock!");             }             odd = !odd;         }     } } class Consumer  extends Thread {      private Buffer buf;      public Consumer(Buffer buf) {          this.buf = buf;     }      public  void run() {          while(true) {              synchronized(buf) {                 System.out.println( "Consumer get lock!");                  if(!buf.bFull) {                     System.out.println( "Consumer wait!!!");                      try{buf.wait();} catch(Exception e) {}                     System.out.println( "Consumer wait return return return !!!!!!! ");                 }                  try{Thread.sleep( 500);} catch(Exception e) {}                 System.out.println(buf.name +  " : " + buf.sex);                 buf.bFull = false;                 buf.notify();                 System.out.println( "Consumer release lock!");             }         }     } } class Buffer {      boolean bFull = false;      String name =  "Unkown";      String sex =  "Unkown"; }

2. 输出：可看出Wait的返回时另一个的wait或者release，不是自己getLock，说明notify放回wait的点。
   
    Java Code 

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   Producer get lock! Producer release lock! Consumer get lock! lucy : male Consumer release lock! Consumer get lock! Consumer wait!!! Producer get lock! Producer release lock! Producer get lock! Producer wait!!! Consumer wait  return  return  return !!!!!!!  jack : female Consumer release lock! Producer wait  return  return  return !!!!!!!  Producer release lock! Producer get lock! Producer wait!!! Consumer get lock!