I am using Apache Common Logging library in my standalone application. After searching through the web, I try to turn off the logging by using
package javaap
As others pointed out, your log instance is instantiated before system property is set, which is too early.
log
Try passing -Dorg.apache.commons.logging.Log=org.apache.commons.logging.impl.NoOpLog to your JVM to make sure it is set at the right time.
-Dorg.apache.commons.logging.Log=org.apache.commons.logging.impl.NoOpLog