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