--- /dev/null 2017-11-09 09:38:01.297999907 +0100 +++ new/test/jdk/jdk/jfr/event/oldobject/TestMetadataObject.java 2018-04-09 18:18:53.735905426 +0200 @@ -0,0 +1,50 @@ +/* + * Copyright (c) 2018, 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. Oracle designates this + * particular file as subject to the "Classpath" exception as provided + * by Oracle in the LICENSE file that accompanied this code. + * + * 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. + */ + +package jdk.jfr.event.oldobject; + +/** + * Purpose of this class is to generate a stack trace + * that can be used in a different class loader + * to test metadata retention + * + */ +public final class TestMetadataObject { + public static Object startRecurse() { + return recurse(50); + } + + public static Object recurse(int depth) { + if (depth > 0) { + return recurse(depth - 1); + } else { + return makeMemoryLeak(); + } + } + + public static byte[] makeMemoryLeak() { + return new byte[OldObjects.MIN_SIZE]; + } +}