Class Loader can not load classes to be analyzed. about checkthread HOT 2 OPEN

A class not found exception most likely is due to an invalid classpath.

In the attached analyze.xml, I see the following:

<property name="classDir" 
value="${rootDir}/classes/com/mindspark/webapp/vicinio/model/active"/>

Should that be the following instead? This would explain the failure mode.

<property name="classDir" value="${rootDir}/classes/"/>

Doesn't work.  I think I'm missing something.  Is the targetpath the location 
of the classes that I would like analyzed?  Is the classpath the location of 
the jar files that those classes use to compile and run?  Is it required to set 
rootDir and classDir?  Just want to see if I at least understand what is 
suppose to be set and how.