title: How to solve Log4j2 could not find a logging implementation error
body: <p>Hi I just want to ask for your help to solve below error I’m experiencing during startup of WAS 9
  SystemErr: R Error StatusLogger Log4j2 could not find a logging implementation. Please add log4j-core to the classpath. Using SimpleLogger to log to the console
  This happened after we upgrade our application from java 5 to java 8 and WAS 6.1 to WAS 9. I don’t know how to solve the issue, we are not even using log4j2, we are only using log4j (log4j-1.2.14.jar) Really need your help guys. Let me know the easiest way to solve this. In the code, we’re only using log4j.properties and commons-logging.properties.</p>