Mercurial > hg > truffle
diff test/runtime/8003720/Victim.java @ 7179:d0aa87f04bd5
8003720: NPG: Method in interpreter stack frame can be deallocated
Summary: Pass down a closure during root scanning to keep the class of the method alive.
Reviewed-by: coleenp, jcoomes
author | stefank |
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date | Tue, 27 Nov 2012 10:13:20 +0100 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/test/runtime/8003720/Victim.java Tue Nov 27 10:13:20 2012 +0100 @@ -0,0 +1,50 @@ +/* + * 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. + * + */ + +public class Victim implements Test8003720.CallMe { + public void callme() { + // note: Victim.this is dead here + Test8003720.println("executing in loader=" + Victim.class.getClassLoader()); + + long now = System.currentTimeMillis(); + + while ((System.currentTimeMillis() - now) < Test8003720.DURATION) { + long count = VictimClassLoader.counter++; + if (count % 1000000 == 0) System.gc(); + if (count % 16180000 == 0) blurb(); + new Object[1].clone(); + } + } + static void blurb() { + Test8003720.println("count=" + VictimClassLoader.counter); + } + static { + blather(); + } + static void blather() { + new java.util.ArrayList<Object>(1000000); + Class<Victim> c = Victim.class; + Test8003720.println("initializing " + c + "#" + System.identityHashCode(c) + " in " + c.getClassLoader()); + } +}