[[Java]] > [[Log4j]] > [[Log4j2]] [[Java]] > [[Log4j2]] | [[Log4j]] - https://logging.apache.org/log4j/2.x/ * 脆弱性 [#bc98a46f] - [[Log4Shell]] *. [#paab5636] - https://www.ralphgoers.com/post/why-was-log4j-2-created