EventDispatchThread.java (run): Stop running when interrupted.

* java/awt/EventDispatchThread.java (run): Stop running when
        interrupted.
        * java/awt/EventQueue.java (pop): Stop dispatch thread when done.
        Reset the queue after transferring its contents.
        (push): Start a new dispatch thread if none is running.

From-SVN: r75977

libjava/java/awt/EventDispatchThread.java

@@ -62,8 +62,18 @@ class EventDispatchThread extends Thread
         try
 	{
 	  AWTEvent evt = queue.getNextEvent();
+	  if (isInterrupted ())
+	    {
+	      // We are interrupted when we should finish executing
+	      return;
+	    }
 	  queue.dispatchEvent(evt);
 	}
+	catch (InterruptedException ie)
+	{
+	  // We are interrupted when we should finish executing
+	  return;
+	}
 	catch (Throwable x)
 	{
 	  System.err.println("Exception during event dispatch:");