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 }