1/*
2 * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
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10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
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25
26/**
27 * <b>[JDK INTERNAL]</b>
28 * The {@code jdk.internal.logger} package defines an internal provider
29 * whose default naive implementation is replaced by the {@code java.logging}
30 * module when the {@code java.logging} module is present.
31 * <p>
32 * <b>Default Implementation</b>
33 * <p>
34 * The JDK default implementation of the System.LoggerFinder will attempt to
35 * load an installed instance of the {@link jdk.internal.logger.DefaultLoggerFinder}
36 * defined in this package.
37 * When the {@code java.util.logging} package is present, this will usually
38 * resolve to an instance of {@link sun.util.logging.internal.LoggingProviderImpl} -
39 * which provides an implementation of the Logger whose backend is a
40 * {@link java.util.logging.Logger java.util.logging.Logger}.
41 * Configuration can thus be performed by direct access to the regular
42 * {@code java.util.logging} APIs,
43 * using {@link java.util.logging.Logger java.util.logging.Logger} and
44 * {@link java.util.logging.LogManager} to access and configure the backend
45 * Loggers.
46 * <br>
47 * If however {@code java.util.logging} is not linked with the application, then
48 * the default implementation will return a simple logger that will print out
49 * all log messages of INFO level and above to the console ({@code System.err}),
50 * as implemented by the base {@link jdk.internal.logger.DefaultLoggerFinder} class.
51 * <p>
52 * <b>Message Levels and Mapping to java.util.logging</b>
53 * <p>
54 * The {@link java.lang.System.LoggerFinder} class documentation describe how
55 * {@linkplain java.lang.System.Logger.Level System.Logger levels} are mapped
56 * to {@linkplain java.util.logging.Level JUL levels} when {@code
57 * java.util.logging} is the backend.
58 *
59 * @see jdk.internal.logger.DefaultLoggerFinder
60 * @see sun.util.logging.internal.LoggingProviderImpl
61 * @see java.lang.System.LoggerFinder
62 * @see java.lang.System.Logger
63 * @see sun.util.logging.PlatformLogger.Bridge
64 * @see sun.util.logging.internal
65 *
66 * @since 9
67 */
68package jdk.internal.logger;
69