63 lines
2.2 KiB
Java
63 lines
2.2 KiB
Java
/*
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* Copyright (c) 2021, Alibaba Group Holding Limited. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 8278125
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* @summary Test if OOME has proper stacktrace
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* @library /test/lib
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* @run main/othervm -Xmx100m -Xms100m GenOutOfMemoryError
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*/
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import jdk.test.lib.Asserts;
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public class GenOutOfMemoryError {
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private static int OOME_HAS_STACK_CNT = 0;
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private void badMethod(int n){
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try {
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System.out.format("bad method was invoked %n", n);
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// Try to allocate an array the same size as the heap - it will throw OOME without
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// actually consuming available memory.
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Integer[] array = new Integer[1000 * 1000 * 100];
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array.hashCode();
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} catch (Throwable t){
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StackTraceElement[] traces = t.getStackTrace();
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if (traces.length != 0) {
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OOME_HAS_STACK_CNT++;
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}
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t.printStackTrace();
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}
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}
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public static void main(String[] args) {
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GenOutOfMemoryError genOutOfMemoryError = new GenOutOfMemoryError();
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for (int i = 0; i < 7; i++) {
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genOutOfMemoryError.badMethod(i + 1);
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}
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Asserts.assertTrue(4/*PreallocatedOutOfMemoryErrorCount defaults to 4*/ == OOME_HAS_STACK_CNT, "Some OOMEs do not have stacktraces");
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}
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}
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