[jboss-jira] [JBoss JIRA] (DROOLS-30) NullPointerException calling Row.toString() without calling Row.get() first

[Mario Fusco (JIRA)]

     [ https://issues.jboss.org/browse/DROOLS-30?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Mario Fusco resolved DROOLS-30.
-------------------------------

    Fix Version/s: 5.6
                   6.0.0.Alpha1
       Resolution: Done

    
> NullPointerException calling Row.toString() without calling Row.get() first
> ---------------------------------------------------------------------------
>
>                 Key: DROOLS-30
>                 URL: https://issues.jboss.org/browse/DROOLS-30
>             Project: Drools
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>    Affects Versions: 5.5
>            Reporter: Ryan Nideffer
>            Assignee: Mario Fusco
>             Fix For: 5.6, 6.0.0.Alpha1
>
>         Attachments: DROOLS-30.patch
>
>
> The object passed to methods of a ViewChangedEventListener that is registered when opening a live query is an instance of org.drools.runtime.rule.impl.RowAdapter and its toString() method throws a NullPointerException if you do not first call get(). This is because toString() assumes the member variable 'factHandles' has been populated, whereas all other accessor methods such as get() first null-check 'factHandles', and if null sets it to the value of this.leftTuples.toFactHandles().
> toString in this case should perform the same populating of factHandles, or at the very least perform a null-check of factHandles so that an exception is not thrown.

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