1 /* 2 * Copyright (C) 2015 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 /** 18 * Test that daemon threads still contending for a lock don't make the runtime abort on shutdown. 19 */ 20 public class Main { 21 22 public final static int THREAD_COUNT = 32; 23 24 public static void main(String[] args) throws Exception { 25 Object sync = new Object(); 26 27 for (int i = 0; i < THREAD_COUNT; i++) { 28 Thread t = new Thread(new Wait(sync)); 29 t.setDaemon(true); 30 t.start(); 31 } 32 } 33 34 private static class Wait implements Runnable { 35 private Object obj; 36 37 public Wait(Object obj) { 38 this.obj = obj; 39 } 40 41 public void run() { 42 for (;;) { 43 synchronized(obj) { 44 try { 45 obj.wait(1); 46 } catch (Exception exc) { 47 exc.printStackTrace(System.out); 48 } 49 } 50 } 51 } 52 } 53 } 54
