Running Java 9 module using Log4j2 2.10.0

Question

I am trying to run a Java 9 module I\'ve created which uses Log4j2 2.10.0.

The problem I\'m running into is that I get a

java.lang.NoClassDefFoundError         


        

Answer 1

Log4j has an issue there which is reported at https://issues.apache.org/jira/browse/LOG4J2-2129.
Either use 2.9, or use 2.10 with the workaround I provided in that ticket or use 2.11 which was released a couple of days ago and fixes the issue.