[jboss-jira] [JBoss JIRA] Created: (JBRULES-2398) Rule not fired when using 'in (0)' condition and another rule with condition ' == null' exists

[Jaroslaw Wosik (JIRA)]

Rule not fired when using 'in (0)' condition and another rule with condition ' == null' exists
----------------------------------------------------------------------------------------------

                 Key: JBRULES-2398
                 URL: https://jira.jboss.org/jira/browse/JBRULES-2398
             Project: Drools
          Issue Type: Bug
      Security Level: Public (Everyone can see)
          Components: drools-compiler (expert)
    Affects Versions: 5.0.1.FINAL
         Environment: Windows Xp Pro, Java 1.5.07
            Reporter: Jaroslaw Wosik
            Assignee: Mark Proctor


When following package is used:

package BROKEN_TEST;
import pl.wosik.conversion.BrokenTest.Holder;
rule "_12"
	
	salience 3
	activation-group "BROKEN"
	when
		$a : Holder(value in (0))
	then
		System.out.println("setting 0");
		$a.setOutcome("setting 0");
end

rule "_13"
	
	salience 2
	activation-group "BROKEN"
	when
		$a : Holder(value in (1))
	then
		System.out.println("setting 1");
		$a.setOutcome("setting 1");
end

rule "_22"
	
	salience 1
	activation-group "BROKEN"
	when
		$a : Holder(value == null)
	then
		System.out.println("setting null");
		$a.setOutcome("setting null");
end

Rule "_12" will not be fired even when Holder.value is 0 because some strange interference between it's and rule _22's condition (note that _22 won't be fired as expected).
When "Holder(value in (0))" is changed into "Holder(value == 0)" or "Holder(value in (0,9))" or the whole rule_22 is removed rule _12 will be fired.

This issue is important as such seemingly strange "in (0)" condition can be generated from a decision table (as was in my case).

I will attach a self-contained Test Case.


-- 
This message is automatically generated by JIRA.
-
If you think it was sent incorrectly contact one of the administrators: https://jira.jboss.org/jira/secure/Administrators.jspa
-
For more information on JIRA, see: http://www.atlassian.com/software/jira