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test/jdk/java/util/logging/Logger/bundleLeak/LoggingApp.java
44 строки
2 KB
Daniel Fuchs
8239013: java.util.logging.Logger catalog cache keeps strong references to ResourceBundles
25 май 2020, 19:59
25 май 2020, 19:59
e04e052
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/* * Copyright (c) 2020, 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.concurrent.locks.Lock; import java.util.concurrent.locks.ReentrantLock; import java.util.logging.Logger; public class LoggingApp { private static final Lock lock = new ReentrantLock(); private static volatile Logger logger; public static Logger logger() { Logger logger = LoggingApp.logger; if (logger != null) return logger; lock.lock(); try { if ((logger = LoggingApp.logger) != null) return logger; LoggingApp.logger = logger = Logger.getLogger("com.example", "MyBundle"); } finally { lock.unlock(); } return logger; } }