[jboss-jira] [JBoss JIRA] (DROOLS-1507) Error message "unable to invole method" should mention DRL line

[Geoffrey De Smet (JIRA)]

     [ https://issues.jboss.org/browse/DROOLS-1507?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Geoffrey De Smet updated DROOLS-1507:
-------------------------------------
    Affects Version/s: 6.5.0.Final


> Error message "unable to invole method" should mention DRL line
> ---------------------------------------------------------------
>
>                 Key: DROOLS-1507
>                 URL: https://issues.jboss.org/browse/DROOLS-1507
>             Project: Drools
>          Issue Type: Bug
>          Components: core engine
>    Affects Versions: 6.5.0.Final
>            Reporter: Geoffrey De Smet
>            Assignee: Mario Fusco
>
> In a complex DRL file we wrote something like this:
> {code}
> when
>     Visit(foo != null, $w : foo.weekOfYear)
>     not Visit(foo.weekOfYear < $w)
> then
>     ...
> end
> {code}
> throws this exception:
> {code}
> java.lang.RuntimeException: cannot invoke getter: getFoo ...
>     at org.mvel2.optimizers.impl.refl.nodes.GetterAccessor.getValue(GetterAccessor.java:74)
>  ...
> Caused by: java.lang.RuntimeException: unable to invoke method: ....foo.getWeekOfYear: target of method is null
>     at org.mvel2.optimizers.impl.refl.nodes.GetterAccessor.getValue(GetterAccessor.java:66)
>     at org.mvel2.optimizers.impl.refl.nodes.GetterAccessor.getValue(GetterAccessor.java:40)
> ...
> Caused by: java.lang.NullPointerException
>     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
>     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>     at java.lang.reflect.Method.invoke(Method.java:497)
>     at org.mvel2.optimizers.impl.refl.nodes.GetterAccessor.getValue(GetterAccessor.java:43)
> {code}
> with no DRL line.



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