1 /* 2 * Copyright (C) 2007 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 a class with a bad finalizer. 19 */ 20 public class Main { 21 public static void main(String[] args) { 22 BadFinalizer bf = new BadFinalizer(); 23 24 System.out.println("About to null reference and request GC."); 25 bf = null; 26 Runtime.getRuntime().gc(); 27 28 for (int i = 0; i < 8; i++) { 29 snooze(4000); 30 Runtime.getRuntime().gc(); 31 } 32 33 System.out.println("UNREACHABLE"); 34 System.exit(0); 35 } 36 37 public static void snooze(int ms) { 38 try { 39 Thread.sleep(ms); 40 } catch (InterruptedException ie) { 41 } 42 } 43 44 /** 45 * Class with a bad finalizer. 46 */ 47 public static class BadFinalizer { 48 protected void finalize() { 49 System.out.println("Finalizer started and spinning..."); 50 int j = 0; 51 52 /* spin for a bit */ 53 long start, end; 54 start = System.nanoTime(); 55 for (int i = 0; i < 1000000; i++) { 56 j++; 57 } 58 end = System.nanoTime(); 59 System.out.println("Finalizer done spinning."); 60 61 System.out.println("Finalizer sleeping forever now."); 62 while (true) { 63 snooze(10000); 64 } 65 } 66 } 67 } 68
