I am working on removing any dependencies on log4j 1.x versions as they have EOL'd. My code uses slf4j-log4j12 bridge. In maven central compile dependencies for slf4j-log4j shows log4j at version 1.2.17 with updates column showing 2.8.1.
So I tried following in build.gradle with the hope that log4j-api-2.8.1 would be used in place of log4j-1.2.17 which is pulled by default. But that doesn't seem to be working. I still see log4j-1.2.17 in the dependent jars.
So I wanted to ask, is this something that is not allowed at all? I.e. there is no slf4j-log4j bridge to log4j 2.8.1 version or for that matter 2.x version? Essentially I should migrate my code to use log4j-api-2.8.1. Or am I missing something here?
dependencies {
compile group: 'org.apache.logging.log4j', name: 'log4j-api', version: '2.8.1'
compile group: 'org.slf4j', name: 'slf4j-log4j12', version: '1.7.25'
}
slf4j-log4j12 is a binding for log4j version 1.2. But you need log4j version 2 (log4j2) binding, which is named log4j-slf4j-impl.
To use slf4j along with log4j2, you will require:
If you have any implementation and/or dependency over log4j version 1.2, you will also require:
However, you should not include following dependencies in any case: