linux下编程用 编译软件

				// Test that Thread.holdsLock() works.								class Lock {}								public class Thread_HoldsLock				{				  static Lock lock = new Lock();				  				  public static void main(String args[]) throws InterruptedException				  {				    Thread_HoldsLock thl = new Thread_HoldsLock();				    				    thl.check();				    synchronized (lock)				      {				        thl.check();				      }				    thl.check();				  }				  				  public void check()				  {				    Thread this_thread = Thread.currentThread();				    System.out.println(this_thread.holdsLock(lock));				  }				}