runservertests

[Barbara Allori]

Hello,
        I am a new  Italian user.
I am getting a LogConfigurationException when trying to run a servlet test:
org.apache.commons.logging.LogConfigurationException: 
java.lang.reflect.InvocationTargetException at 
org.apache.commons.logging.impl.LogFactoryImpl.newInstance(LogFactoryImpl.java:509) 
at 
org.apache.commons.logging.impl.LogFactoryImpl.getInstance(LogFactoryImpl.java:285) 
at 
org.apache.commons.logging.impl.LogFactoryImpl.getInstance(LogFactoryImpl.java:255) 
at org.apache.commons.logging.LogFactory.getLog(LogFactory.java:381)

I'm using Tomcat 4.1 and Cactus 1.4.1; I have put the 
commons-logging-1.0.jar in common/lib directory of Tomcat and also in the 
web-inf/lib dir of my web application.

If I want to use  the runservertests task  with already running 
servers,  how to is possible?

Thanks
Barbara