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/*
* 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);
}
}
}
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