Log4j 1

Log4j 1 is a software library used by developers to record, or “log,” information about what a program is doing—such as errors, warnings, or important events. This helps programmers monitor and troubleshoot applications. Think of it like a detailed diary that tracks a program’s activities in real-time, making it easier to identify issues or understand behavior. However, being an older version, Log4j 1 has security vulnerabilities and is less feature-rich compared to newer versions, so updating to the latest secure edition is recommended.