1/* 2 * Copyright (c) 2016, 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 */ 25import java.util.concurrent.CopyOnWriteArrayList; 26import java.util.logging.Handler; 27import java.util.logging.LogRecord; 28import java.util.logging.Logger; 29 30/** 31 * @test 8152515 32 * @summary Checks that LinkageError are ignored when closing handlers 33 * during Shutdown. 34 * @build LinkageErrorTest 35 * @run main/othervm LinkageErrorTest 36 */ 37 38public class LinkageErrorTest { 39 40 public static class TestHandler extends Handler { 41 42 private volatile boolean closed; 43 public TestHandler() { 44 INSTANCES.add(this); 45 } 46 47 @Override 48 public void publish(LogRecord record) { 49 } 50 51 @Override 52 public void flush() { 53 } 54 55 @Override 56 public void close() throws SecurityException { 57 closed = true; 58 try { 59 System.out.println(INSTANCES); 60 } catch (Throwable t) { 61 // ignore 62 } 63 throw new LinkageError(); 64 } 65 66 @Override 67 public String toString() { 68 return super.toString() + "{closed=" + closed + '}'; 69 } 70 71 private static final CopyOnWriteArrayList<Handler> INSTANCES 72 = new CopyOnWriteArrayList<>(); 73 } 74 75 private static final Logger LOGGER = Logger.getLogger("test"); 76 private static final Logger GLOBAL = Logger.getGlobal(); 77 78 public static void main(String[] args) { 79 LOGGER.addHandler(new TestHandler()); 80 LOGGER.addHandler(new TestHandler()); 81 GLOBAL.addHandler(new TestHandler()); 82 } 83} 84