1 /* 2 * Copyright (c) 2008, 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. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 /* 25 * @test 26 * @bug 6397609 27 * @summary Tests autocleaning 28 * @author Sergey Malenkov 29 */ 30 31 import java.beans.PropertyEditorManager; 32 33 public class Test6397609 { 34 public static void main(String[] args) throws Exception { 35 MemoryClassLoader loader = new MemoryClassLoader(); 36 PropertyEditorManager.registerEditor( 37 Object.class, 38 loader.compile("Editor", 39 "public class Editor extends java.beans.PropertyEditorSupport {}")); 40 41 if (!isEditorExist(Object.class)) { 42 throw new Error("the editor is lost"); 43 } 44 loader = null; // clean the reference 45 if (isEditorExist(Object.class)) { 46 throw new Error("unexpected editor is found"); 47 } 48 } 49 50 private static boolean isEditorExist(Class type) { 51 for (int i = 0; i < 10; i++) { 52 System.gc(); // clean all weak references 53 if (null == PropertyEditorManager.findEditor(type)) { 54 return false; 55 } 56 } 57 return true; 58 } 59 }