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Log4j
EntityQ286923· pop 24· linked from 172 articles

Apache Log4j is a Java-based logging utility originally written by Ceki Gülcü. It is part of the Apache Logging Services, a project of the Apache Software Foundation. Log4j is one of several Java logging frameworks.

Key facts

Software.name
Apache Log4j
Software.logo
250px
Software.developer
Apache Software Foundation
Software.operating system
Cross-platform
Software.programming language
Java
Software.genre
Logging
Software.license
Apache License 2.0

via Wikipedia infobox

Official website

Apache Log4j :: Apache Log4j

logging.apache.org

Link to the official site · 4,216 chars · not written by Vinony

Wikidata facts

Show 4 more facts
source code repository URL
github.com/apache/logging-log4j2
Commons category
Apache Log4j
software version identifier
2.25.4
Sources (3)

via Wikidata · CC0

~10 min read

Article

14 sections
Contents
  • Apache Log4j 2
  • Features
  • Log4j log levels
  • Custom log levels
  • Log4j configuration
  • Example for Log4j 2
  • Example for Log4j 1.2
  • TTCC
  • Ports
  • Log4Shell vulnerability
  • See also
  • References
  • Further reading
  • External links

Apache Log4j is a Java-based logging utility originally written by Ceki Gülcü. It is part of the Apache Logging Services, a project of the Apache Software Foundation. Log4j is one of several Java logging frameworks.

Gülcü has since created SLF4J, Reload4j, and Logback which are alternatives to Log4j.

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