81 lines
2.5 KiB
Java
81 lines
2.5 KiB
Java
/*
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* Copyright (C) 2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import java.util.Vector;
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public class Main {
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static char [][] holder;
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static class ArrayMemEater {
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static boolean sawOome;
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static void blowup(char[][] holder) {
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try {
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for (int i = 0; i < holder.length; ++i) {
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holder[i] = new char[1024 * 1024];
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}
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} catch (OutOfMemoryError oome) {
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ArrayMemEater.sawOome = true;
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}
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}
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}
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static class InstanceFinalizerMemEater {
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public void finalize() {}
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}
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static boolean triggerArrayOOM(char[][] holder) {
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ArrayMemEater.blowup(holder);
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return ArrayMemEater.sawOome;
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}
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static boolean triggerInstanceFinalizerOOM() {
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boolean sawOome = false;
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try {
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Vector v = new Vector();
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while (true) {
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v.add(new InstanceFinalizerMemEater());
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}
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} catch (OutOfMemoryError e) {
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sawOome = true;
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}
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return sawOome;
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}
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public static void main(String[] args) {
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// Keep holder alive to make instance OOM happen faster.
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holder = new char[128 * 1024][];
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if (!triggerArrayOOM(holder)) {
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// The test failed here. To avoid potential OOME during println,
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// make holder unreachable.
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holder = null;
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System.out.println("NEW_ARRAY did not throw OOME");
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}
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if (!triggerInstanceFinalizerOOM()) {
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// The test failed here. To avoid potential OOME during println,
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// make holder unreachable.
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holder = null;
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System.out.println("NEW_INSTANCE (finalize) did not throw OOME");
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}
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// Make holder unreachable here so that the Sentinel
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// allocation in runFinalization() won't fail.
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holder = null;
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System.runFinalization();
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}
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}
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