Use log4 v1.x at runtime with Hippo CMS 12
While Hippo CMS 12 now requires log4j2 for development and by default also at runtime, it still is possible, if really needed, to use log4j v1.x at runtime.
In order to create a CMS 12 distribution with log4j v1.x, the following actions should be executed:
Open distribution archive:
1. Under conf folder replace log4j2.xml with a valid log4j.xml.
2. Under shared/lib folder replace the following files (specific versions may change/differ):
jcl-over-slf4j-1.7.25.jar log4j-api-2.8.2.jar log4j-core-2.8.2.jar log4j-slf4j-impl-2.8.2.jar slf4j-api-1.7.25.jar
with this list:
jcl-over-slf4j-1.7.6.jar log4j-1.2.17.jar slf4j-api-1.7.6.jar slf4j-log4j12-1.7.6.jar