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