Description of problem:
If you create a project with all samples for Drools 6 and try to run the sample classes, you get build errors.

Version-Release number of selected component (if applicable):
BRMS 6.0.0.ER2
JBoss Drools Core 6.0.0.201308222359 org.drools.eclipse.feature.feature.group

How reproducible:


Steps to Reproduce:
1. create new Drools 6 project with all samples
2. run DroolsTest class

Actual results:
java.lang.RuntimeException: Error while creating KieBase

Expected results:
Rules run fine and print the correct output.

Additional info:
The problem is that Sample.xls and Sample.drl use the Message class, but both files use their own definition. This was not problem prior to 6 version, but things changed in Drools 6. Now both files are included in one KieBase, where imports are merged, thus thic conflict.
I see two solutions to this problem:
1) create a common class Message that both rulesets will use
2) modify kmodule.xml to include only packages relevant to the type of KieBase (e.g. for 'rules' KieBase, add attribute 'packages="rules"')