[rules-users] RE: 4.0.0-M2: RuleFlow "CannotResolveClassException"error

[Kris Verlaenen]

RE: 4.0.0-M2: RuleFlow "CannotResolveClassException" error> I think the RFM 
file is just a data file for the GUI display, not needed for runtime. Kris 
can you confirm?
It is the other way around.  The plugin generates 2 versions of your 
ruleflow:
 - a .rf (ruleflow file) containing the entire ruleflow, including all 
graphical information like coordinates of all the elements
 - a .rfm version (ruleflow model file) containing only the definition of 
the ruleflow, not the graphical information

It is indeed this second file (the *.rfm) that needs to be used when adding 
a ruleflow to a ProcessBuilder.
Trying to add the *.rf file will indeed result in the exception you provided 
because the classes containing the graphical information are not part of the 
drools core and thus cannot be found.

Thx Michael for updating the wiki.

Kris