Hi,

 

I am using JBoss Rules 4.0.0.11754MR2 in an RAD 7.0 (Eclipse 3.2) environment.

 

Cannot make it work, even examples…

 

Here is a message produces on all rules: The rule called <here goes rule name> is not valid. Check for compile errors reported.

 

Here is a full stack trace:

 

Exception in thread "main" java.lang.IllegalArgumentException: The rule called Hello World is not valid. Check for compile errors reported.

      at org.drools.common.AbstractRuleBase.addRule(AbstractRuleBase.java:363)

      at org.drools.reteoo.ReteooRuleBase.addRule(ReteooRuleBase.java:263)

      at org.drools.common.AbstractRuleBase.addPackage(AbstractRuleBase.java:293)

      at org.drools.examples.HelloWorldExample.readRule(HelloWorldExample.java:72)

      at org.drools.examples.HelloWorldExample.main(HelloWorldExample.java:21)

 

 

After digging it further I found that in Rule class method isValid is being called defiend as followes:

 

    public boolean isValid() {

 

        if ( this.consequence == null || !isSemanticallyValid() ) {

            return false;

        }

 

        return true;

    }

 

The debugger shows that this.consequence is null always! So rules are always not valid.

 

Anyone saw this problem? Any idea how to resolve it?

 

Thanks a lot!

 

-Sergey