3rd party jar logs in tomcat catalina.out

Question

I am using a library jar with my code. This jar uses the java.util.Logger for logging purposes.

In our code we use log4j2 & write the logs to project.log in tomcat/logs.

The issue is, the jar's logs are written to tomcat's catalina.out. I want these logs to be written to my project.log file. This is the file my code's logs are written to.

A quick help would be appreciated. Thanks.