1 /* 2 * Copyright (C) 2017 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 dalvik.system.VMRuntime; 18 19 public class Main { 20 public static void main(String[] args) { 21 // Call our optimization API, we used to have a bug in the RegionSpace on large 22 // objects allocated through it. 23 Object[] o = (Object[]) VMRuntime.getRuntime().newUnpaddedArray(Object.class, 70000); 24 25 // Make the test run for 30 seconds to be less dependent on GC heuristics. 26 long time = System.currentTimeMillis(); 27 int i = 1; 28 do { 29 allocateIntArray(i); 30 for (int j = 0; j < o.length; j++) { 31 if (o[j] != null) { 32 // Just print, not throw, to get into "interesting" issues (eg the first 33 // element that will not be null is the class of the object, the second is 34 // actually the first element of the int array). 35 System.out.println("Unexpected value: " + o[j]); 36 } 37 } 38 if (i < 100000) { 39 i++; 40 } else { 41 i = 0; 42 } 43 } while (System.currentTimeMillis() - time < 30000); 44 } 45 46 static void allocateIntArray(int i) { 47 int[] intArray = new int[i]; 48 for (int j = 0; j < intArray.length; j++) { 49 intArray[j] = 1; 50 } 51 } 52 } 53
