This article will look at how to extend log4j by adding a new appender—the part of the system responsible for actually sending the log messages somewhere.The appender I discuss is a lightweight ...

SLF4J: Actual binding is of type [org.slf4j.impl.Log4jLoggerFactory] log4j:ERROR A "org.apache.log4j.ConsoleAppender" object is not assignable to a "org.apache.log4j.Appender" variable. log4j:ERROR ...

Appenders for Log4J 1.2.x, Log4J 2.x, and Logback that write to AWS destinations. ... This library is heavily object-oriented. I'm not going to say it's "good" OO, because Dunning-Kruger. However, the ...