1 /* 2 * Copyright (c) 2008, 2015, 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 * @modules java.compiler 30 * java.desktop 31 * jdk.compiler 32 */ 33 34 import java.beans.PropertyEditorManager; 35 36 public class Test6397609 { 37 public static void main(String[] args) throws Exception { 38 MemoryClassLoader loader = new MemoryClassLoader(); 39 PropertyEditorManager.registerEditor( 40 Object.class, 41 loader.compile("Editor", 42 "public class Editor extends java.beans.PropertyEditorSupport {}")); 43 44 if (!isEditorExist(Object.class)) { 45 throw new Error("the editor is lost"); 46 } 47 loader = null; // clean the reference 48 if (isEditorExist(Object.class)) { 49 throw new Error("unexpected editor is found"); 50 } 51 } 52 53 private static boolean isEditorExist(Class type) { 54 for (int i = 0; i < 10; i++) { 55 System.gc(); // clean all weak references 56 if (null == PropertyEditorManager.findEditor(type)) { 57 return false; 58 } 59 } 60 return true; 61 } 62 }