package-info.java

/*
 * Copyright (c) 2015, 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.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * 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
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/**
 * <b>[JDK INTERNAL]</b>
 * The {@code jdk.internal.logger} package defines an internal provider
 * whose default naive implementation is replaced by the {@code java.logging}
 * module when the {@code java.logging} module is present.
 * <p>
 * <b>Default Implementation</b>
 * <p>
 * The JDK default implementation of the System.LoggerFinder will attempt to
 * load an installed instance of the {@link jdk.internal.logger.DefaultLoggerFinder}
 * defined in this package.
 * When the {@code java.util.logging} package is present, this will usually
 * resolve to an instance of {@link sun.util.logging.internal.LoggingProviderImpl} -
 * which provides an implementation of the Logger whose backend is a
 * {@link java.util.logging.Logger java.util.logging.Logger}.
 * Configuration can thus be performed by direct access to the regular
 * {@code java.util.logging} APIs,
 * using {@link java.util.logging.Logger java.util.logging.Logger} and
 * {@link java.util.logging.LogManager} to access and configure the backend
 * Loggers.
 * <br>
 * If however {@code java.util.logging} is not linked with the application, then
 * the default implementation will return a simple logger that will print out
 * all log messages of INFO level and above to the console ({@code System.err}),
 * as implemented by the base {@link jdk.internal.logger.DefaultLoggerFinder} class.
 * <p>
 * <b>Message Levels and Mapping to java.util.logging</b>
 * <p>
 * The {@link java.lang.System.LoggerFinder} class documentation describe how
 * {@linkplain java.lang.System.Logger.Level System.Logger levels} are mapped
 * to {@linkplain java.util.logging.Level JUL levels} when {@code
 * java.util.logging} is the backend.
 *
 * @see jdk.internal.logger.DefaultLoggerFinder
 * @see sun.util.logging.internal.LoggingProviderImpl
 * @see java.lang.System.LoggerFinder
 * @see java.lang.System.Logger
 * @see sun.util.logging.PlatformLogger.Bridge
 * @see sun.util.logging.internal
 *
 * @since 9
 */
package jdk.internal.logger;