59       System.out.println ("TestThread.");
  60       testing = true;
  61     }
  62   }
  63 
  64   class TestThreadStarter extends Thread {
  65     public void run() {
  66       System.out.println ("TestThreadStarter.");
  67       starting=true;
  68       testThread.start();
  69     }
  70   }
  71 
  72   class GCThread extends Thread {
  73     public void run() {
  74       System.out.println ("GCThread run.");
  75       synchronized (testThread) {
  76         System.out.println ("GCThread synchronized.");
  77               while (!done) {
  78                 gcing=true;
  79                 yield();
  80                 System.gc();
  81               }
  82             }
  83         System.out.println ("GCThread done.");
  84     }
  85   }
  86 
  87   TestThread testThread = new TestThread();
  88   boolean done = false;
  89   boolean gcing = false;
  90   boolean testing = false;
  91   boolean starting = false;
  92 }

  59       System.out.println ("TestThread.");
  60       testing = true;
  61     }
  62   }
  63 
  64   class TestThreadStarter extends Thread {
  65     public void run() {
  66       System.out.println ("TestThreadStarter.");
  67       starting=true;
  68       testThread.start();
  69     }
  70   }
  71 
  72   class GCThread extends Thread {
  73     public void run() {
  74       System.out.println ("GCThread run.");
  75       synchronized (testThread) {
  76         System.out.println ("GCThread synchronized.");
  77               while (!done) {
  78                 gcing=true;
  79                 Thread.yield();
  80                 System.gc();
  81               }
  82             }
  83         System.out.println ("GCThread done.");
  84     }
  85   }
  86 
  87   TestThread testThread = new TestThread();
  88   boolean done = false;
  89   boolean gcing = false;
  90   boolean testing = false;
  91   boolean starting = false;
  92 }