Tag 2.11.1
-----BEGIN PGP SIGNATURE-----
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=kgx3
-----END PGP SIGNATURE-----
[maven-release-plugin] prepare release log4j-2.11.1-rc1
35 files changed
tree: 1dbabc80f6adb09bd561f69130a633bd78ad1e98
  1. .dockerignore
  2. .gitattributes
  3. .gitignore
  4. .mvn/
  5. .travis-toolchains.xml
  6. .travis.yml
  7. BUILDING.md
  8. CONTRIBUTING.md
  9. Dockerfile
  10. LICENSE.txt
  11. NOTICE.txt
  12. README.md
  13. RELEASE-NOTES.md
  14. checkstyle-header.txt
  15. checkstyle-import-control.xml
  16. checkstyle-suppressions.xml
  17. checkstyle.xml
  18. doap_log4j2.rdf
  19. findbugs-exclude-filter.xml
  20. jenkins-toolchains.xml
  21. log4j-1.2-api/
  22. log4j-api-java9/
  23. log4j-api/
  24. log4j-appserver/
  25. log4j-bom/
  26. log4j-cassandra/
  27. log4j-core-its/
  28. log4j-core-java9/
  29. log4j-core/
  30. log4j-couchdb/
  31. log4j-distribution/
  32. log4j-flume-ng/
  33. log4j-iostreams/
  34. log4j-jcl/
  35. log4j-jdbc-dbcp2/
  36. log4j-jmx-gui/
  37. log4j-jpa/
  38. log4j-jul/
  39. log4j-liquibase/
  40. log4j-mongodb2/
  41. log4j-mongodb3/
  42. log4j-osgi/
  43. log4j-perf/
  44. log4j-samples/
  45. log4j-slf4j-impl/
  46. log4j-slf4j18-impl/
  47. log4j-taglib/
  48. log4j-to-slf4j/
  49. log4j-web/
  50. mvnw
  51. mvnw.cmd
  52. pom.xml
  53. src/
  54. toolchains-docker.xml
  55. toolchains-sample-linux.xml
  56. toolchains-sample-mac.xml
  57. toolchains-sample-win.xml
README.md

Apache Log4j 2

Apache Log4j 2 is an upgrade to Log4j that provides significant improvements over its predecessor, Log4j 1.x, and provides many of the improvements available in Logback while fixing some inherent problems in Logback's architecture.

Jenkins Status Travis Status Maven Central

Pull Requests on Github

By sending a pull request you grant the Apache Software Foundation sufficient rights to use and release the submitted work under the Apache license. You grant the same rights (copyright license, patent license, etc.) to the Apache Software Foundation as if you have signed a Contributor License Agreement. For contributions that are judged to be non-trivial, you will be asked to actually signing a Contributor License Agreement.

Usage

Users should refer to Maven, Ivy, Gradle, and SBT Artifacts on the Log4j web site for instructions on how to include Log4j into their project using their chosen build tool.

Basic usage of the Logger API:

package com.example;

import org.apache.logging.log4j.Logger;
import org.apache.logging.log4j.LogManager;

public class Example {
    private static final Logger LOGGER = LogManager.getLogger();

    public static void main(String... args) {
        String thing = args.length > 0 ? args[0] : "world";
        LOGGER.info("Hello, {}!", thing);
        LOGGER.debug("Got calculated value only if debug enabled: {}", () -> doSomeCalculation());
    }

    private static Object doSomeCalculation() {
        // do some complicated calculation
    }
}

And an example log4j2.xml configuration file:

<?xml version="1.0" encoding="UTF-8"?>
<Configuration>
  <Appenders>
    <Console name="Console" target="SYSTEM_OUT">
      <PatternLayout pattern="%d{HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n"/>
    </Console>
  </Appenders>
  <Loggers>
    <Logger name="com.example" level="INFO"/>
    <Root level="error">
      <AppenderRef ref="Console"/>
    </Root>
  </Loggers>
</Configuration>

Documentation

The Log4j 2 User's Guide is available here or as a downloadable PDF.

Requirements

Log4j 2.4 and greater requires Java 7, versions 2.0-alpha1 to 2.3 required Java 6. Some features require optional dependencies; the documentation for these features specifies the dependencies.

License

Apache Log4j 2 is distributed under the Apache License, version 2.0.

Download

How to download Log4j, and how to use it from Maven, Ivy and Gradle. You can access the latest development snapshot by using the Maven repository https://repository.apache.org/snapshots, see Snapshot builds.

Issue Tracking

Issues, bugs, and feature requests should be submitted to the JIRA issue tracking system for this project.

Pull request on GitHub are welcome, but please open a ticket in the JIRA issue tracker first, and mention the JIRA issue in the Pull Request.

Building From Source

Log4j requires Apache Maven 3.x. To build from source and install to your local Maven repository, execute the following:

mvn install

Contributing

We love contributions! Take a look at our contributing page.