[jboss-jira] [JBoss JIRA] Commented: (JBRULES-2729) NullPointerException from CompositeMaxDurationTimer.createTrigger

[Wolfgang Laun (JIRA)]

    [ https://jira.jboss.org/browse/JBRULES-2729?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12561736#action_12561736 ] 

Wolfgang Laun commented on JBRULES-2729:
----------------------------------------

A similar rule where the NPE occurs in the line before:
  at org.drools.time.impl.CompositeMaxDurationTimer.createTrigger(CompositeMaxDurationTimer.java:58)
is this:
rule "match-start-end"
when
    $start: CallStart( $s: source, $d: destination, $st: time )
    not CallStart( this before $start )                                                      ### !!! ###
    $end:   CallEnd( source == $s, destination == $d, $et: time )
    not CallEnd( source == $s, destination == $d, this before $end )  ### !!! ###
then
//...
end

Omitting ONE of the marked "not" CEs avoids the NPE.


                                   

> NullPointerException from CompositeMaxDurationTimer.createTrigger
> -----------------------------------------------------------------
>
>                 Key: JBRULES-2729
>                 URL: https://jira.jboss.org/browse/JBRULES-2729
>             Project: Drools
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>          Components: drools-compiler
>    Affects Versions: 5.1.1.FINAL
>         Environment: Windows XP SP3, Java 1.6.0_21, Drools Fusion 5.1.1
>            Reporter: Will Lauer
>            Assignee: Mark Proctor
>
> The timer field of CompositeMaxDurationTimer appears to be not getting populated correctly when certain types of rules are created in Drools Fusion. This results in subsequent calls to CompositeMaxDurationTimer.createTimer to reference a null pointer during execution. While the error triggers during fact insertion in Drools Fusion, it appears to be due to an incomplete timer definition during rules compilation.

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