| /* |
| * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| import java.util.logging.*; |
| |
| /* |
| * @test |
| * @bug 8010727 |
| * @summary LogManager.addLogger should succeed to add a logger named "" |
| * if LogManager.getLogger("") returns null. |
| * |
| * @run main LogManagerInstanceTest |
| */ |
| |
| public class LogManagerInstanceTest { |
| public static void main(String[] argv) { |
| LogManager mgr = LogManager.getLogManager(); |
| if (getRootLogger(mgr) == null) { |
| throw new RuntimeException("Root logger not exist"); |
| } |
| |
| SecondLogManager mgr2 = new SecondLogManager(); |
| Logger root = getRootLogger(mgr2); |
| if (mgr2.base != root) { |
| throw new RuntimeException(mgr2.base + " is not the root logger"); |
| } |
| } |
| |
| private static Logger getRootLogger(LogManager mgr) { |
| Logger l = mgr.getLogger(""); |
| if (l != null && !l.getName().isEmpty()) { |
| throw new RuntimeException(l.getName() + " is not an invalid root logger"); |
| } |
| return l; |
| } |
| |
| static class SecondLogManager extends LogManager { |
| final Logger base; |
| private SecondLogManager() { |
| Logger root = getLogger(""); |
| if (root == null) { |
| root = new BaseLogger("", null); |
| if (!super.addLogger(root)) |
| throw new RuntimeException("Fail to addLogger " + root); |
| } else { |
| throw new RuntimeException("Root logger already exists"); |
| } |
| this.base = root; |
| } |
| } |
| static class BaseLogger extends Logger { |
| BaseLogger(String name, String rbname) { |
| super(name, rbname); |
| } |
| } |
| } |