| /* |
| * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| * |
| */ |
| |
| /* |
| * @test |
| * @bug 8003720 |
| * @summary Method in interpreter stack frame can be deallocated |
| * @compile -XDignore.symbol.file -source 1.7 -target 1.7 Victim.java |
| * @run main/othervm -Xverify:all -Xint Test8003720 |
| */ |
| |
| // Attempts to make the JVM unload a class while still executing one of its methods. |
| public class Test8003720 { |
| final static String VICTIM_CLASS_NAME = "Victim"; |
| final static boolean QUIET = true; |
| final static long DURATION = 30000; |
| |
| public interface CallMe { void callme(); } |
| |
| public static void main(String... av) throws Throwable { |
| newVictimClassLoader(); |
| System.gc(); |
| |
| newVictimClass(); |
| System.gc(); |
| |
| newVictimInstance(); |
| System.gc(); |
| |
| ((CallMe)newVictimInstance()).callme(); |
| } |
| |
| public static Object newVictimInstance() throws Throwable { |
| return newVictimClass().newInstance(); |
| } |
| |
| public static Class<?> newVictimClass() throws Throwable { |
| return Class.forName(VICTIM_CLASS_NAME, true, new VictimClassLoader()); |
| } |
| |
| public static ClassLoader newVictimClassLoader() throws Throwable { |
| return new VictimClassLoader(); |
| } |
| |
| public static void println(String line) { |
| if (!QUIET) { |
| System.out.println(line); |
| } |
| } |
| } |