1 /* 2 * Copyright (c) 2018, 2019, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package jdk.jfr.event.oldobject; 27 28 import jdk.testlibrary.jfr.EventNames; 29 import jdk.testlibrary.jfr.Events; 30 import jdk.testlibrary.jfr.OldObjects; 31 32 /** 33 * Purpose of this class is to generate a stack trace 34 * that can be used in a different class loader 35 * to test metadata retention 36 * 37 */ 38 public final class TestMetadataObject { 39 public static Object startRecurse() { 40 return recurse(50); 41 } 42 43 public static Object recurse(int depth) { 44 if (depth > 0) { 45 return recurse(depth - 1); 46 } else { 47 return makeMemoryLeak(); 48 } 49 } 50 51 public static byte[] makeMemoryLeak() { 52 return new byte[OldObjects.MIN_SIZE]; 53 } 54 }