1 /* 2 * Copyright (C) 2008 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 import java.util.Timer; 18 import java.util.TimerTask; 19 20 /* 21 * Throw an exception from a finalizer and make sure it's harmless. Under 22 * Dalvik this may also generate a warning in the log file. 23 */ 24 public class Main { 25 static Object waiter = new Object(); 26 static volatile boolean didFinal = false; 27 28 static void createAndForget() { 29 Main main = new Main(); 30 } 31 32 public static void main(String[] args) { 33 createAndForget(); 34 35 System.gc(); 36 System.runFinalization(); 37 38 new Timer(true).schedule(new TimerTask() { 39 public void run() { 40 System.out.println("Timed out, exiting"); 41 System.exit(1); 42 } 43 }, 30000); 44 45 while (!didFinal) { 46 try { 47 Thread.sleep(500); 48 } catch (InterruptedException ie) { 49 System.err.println(ie); 50 } 51 } 52 53 /* give it a chance to cause mayhem */ 54 try { 55 Thread.sleep(750); 56 } catch (InterruptedException ie) { 57 System.err.println(ie); 58 } 59 60 System.out.println("done"); 61 } 62 63 protected void finalize() throws Throwable { 64 System.out.println("In finalizer"); 65 66 didFinal = true; 67 68 throw new InterruptedException("whee"); 69 } 70 } 71
