log4j error - com.cloudera.impala.jdbc42.internal.apache.log4j.Appender

[#1]

Soon after start of the application that connects to Impala I get following errors:

log4j:ERROR A "org.apache.log4j.ConsoleAppender" object is not assignable to a "com.cloudera.impala.jdbc42.internal.apache.log4j.Appender" variable.
log4j:ERROR The class "com.cloudera.impala.jdbc42.internal.apache.log4j.Appender" was loaded by
log4j:ERROR [sun.misc.Launcher$AppClassLoader@18b4aac2] whereas object of type
log4j:ERROR "org.apache.log4j.ConsoleAppender" was loaded by [sun.misc.Launcher$AppClassLoader@18b4aac2].
log4j:ERROR Could not instantiate appender named "stdout".

I guess it has something with me using log4j2 - what should I do to make the logging to work and honor log4j2 settings? 

[#2]

@Ros ,

I imagine that despite the error your connection is working fine, right?

If that's the case, you can safely ignore the error messages.

Andre