--- /dev/null 2012-11-21 12:42:23.117080913 +0100 +++ new/test/runtime/8003720/Test8003720.java 2012-11-22 14:37:35.000000000 +0100 @@ -0,0 +1,71 @@ +/* + * 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 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); + } + } +}