jdk-24/test/jdk/java/util/logging/Logger/bundleLeak/MyBundle.java
Daniel Fuchs e04e052889 8239013: java.util.logging.Logger catalog cache keeps strong references to ResourceBundles
Changed the Logger catalog cache to use WeakReference<ResourceBundle>

Reviewed-by: lancea, mchung, naoto
2020-05-25 17:59:40 +01:00

56 lines
2.1 KiB
Java

/*
* 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.Collections;
import java.util.Enumeration;
import java.util.ResourceBundle;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
public class MyBundle extends ResourceBundle {
Map<String, String> mapping = new ConcurrentHashMap<>();
/**
* Gets an object for the given key from this resource bundle.
* Returns null if this resource bundle does not contain an
* object for the given key.
*
* @param key the key for the desired object
* @throws NullPointerException if {@code key} is {@code null}
* @return the object for the given key, or null
*/
protected Object handleGetObject(String key) {
return mapping.computeIfAbsent(key,
(k) -> k + "-" + System.identityHashCode(this.getClass().getClassLoader()));
}
/**
* Returns an enumeration of the keys.
*
* @return an {@code Enumeration} of the keys contained in
* this {@code ResourceBundle} and its parent bundles.
*/
public Enumeration<String> getKeys() {
return Collections.enumeration(mapping.keySet());
}
}