# Apache Log4j

Skill · Software Development and Engineering Practices

Canonical page: https://career.thegoodapps.co/skills/apache-log4j

Apache Log4j is a widely used Java-based logging library that lets developers output diagnostic and application log messages with configurable formats, levels, and destinations. It became broadly known outside developer circles after the 2021 Log4Shell vulnerability (CVE-2021-44228), a critical remote code execution flaw that affected countless Java applications worldwide. It remains a standard tool for logging in enterprise Java software.

Related skills: [Java](https://career.thegoodapps.co/skills/java), [Vulnerability Management](https://career.thegoodapps.co/skills/vulnerability-management)

## Open roles requiring Apache Log4j (0)

None of the roles we have read name this skill yet. A large share of the visible corpus has not been parsed for skills, so this is at least as likely to be our backlog as the market's verdict.