Nat,

What kind of environment are you working on? Stand-alone JSE, app server JEE, etc? I'm asking because yesterday I had to fix the same issue for a JBRules Ant task and in the end it was an ant classloader that was messing with some stuff jbrules needs.

So, basically, if you are sure you have all dependencies on classpath, it is probably a classloader issue.

  []s
  Edson


Nat wrote:

At runtime I am getting a NoClassDefFound exception for the class
org.drools.base.BaseClassFieldExtractor when I try to call the method
addPackageFromDrl( src) from PackageBuilder. I know the class is in
drools-core.jar. I know that I can load and instansiate
org.drools.RuleBaseFactory which is in the same jar file so I know the jar
is in my classpath. I'm guessing BaseClassFieldExtractor needs something
that is missing???

Does anyone have any ideas as to where I'm going wrong or how I can find
what is missing?

I know this is somewhat vague but I'm at a loss of where to look next.
Thanks in advance for your time,
Nat


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 Edson Tirelli
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