68 lines
2.4 KiB
Java
68 lines
2.4 KiB
Java
/*
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* Copyright (c) 2018, 2019, Oracle and/or its affiliates. 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 4185411
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* @summary This program crashes in 1.1, but runs okay in 1.2.
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* @run main/othervm -Xss512k ReflectStackOverflow
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*/
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import java.lang.reflect.*;
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public class ReflectStackOverflow {
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private static final int COUNT = 11000;
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public static void main(String[] cmdline) throws Throwable {
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for (int i = 0; i < COUNT+1; i++) {
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stuff(i);
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}
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}
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private static void stuff(int count) throws Throwable {
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if (count < COUNT)
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return; // don't do anything the first COUNT times.
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try {
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final Method method =
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Method.class.getMethod
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("invoke", new Class[] { Object.class, Object[].class });
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final Object[] args = new Object[] { method, null };
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args[1] = args;
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method.invoke(method, args); // "recursive reflection"
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// exception should have been thrown by now...
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System.out.println("how did I get here?");
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} catch(Throwable t) {
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int layers;
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for(layers = 0; t instanceof InvocationTargetException; layers++)
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t = ((InvocationTargetException)t).getTargetException();
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System.err.println("Found " + layers + " layers of wrappers.");
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if (!(t instanceof StackOverflowError)) {
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throw t;
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}
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}
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}
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}
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