[jboss-jira] [JBoss JIRA] (DROOLS-2241) Wrong pattern cloning causes missing FromNode sharing and eventually a NPE

[Mario Fusco (JIRA)]

     [ https://issues.jboss.org/browse/DROOLS-2241?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Mario Fusco resolved DROOLS-2241.
---------------------------------
    Resolution: Done


Fixed by https://github.com/kiegroup/drools/commit/50625d913cae7ac7aea17232f2ab59ea16d36894

> Wrong pattern cloning causes missing FromNode sharing and eventually a NPE
> --------------------------------------------------------------------------
>
>                 Key: DROOLS-2241
>                 URL: https://issues.jboss.org/browse/DROOLS-2241
>             Project: Drools
>          Issue Type: Bug
>            Reporter: Mario Fusco
>            Assignee: Mario Fusco
>
> Wrong cloning of a pattern having a FromNode as source causes wrong initialization of both node and pattern which in turn prevents sharing of FromNode when possible. 
> Even worse when the duplicated FromNode are part of a subnetwork also the RiaNode at the end of the subnetwork is wrongly initialized leading to a NPE like the following:
> {node}
> java.lang.NullPointerException
> 	at org.drools.core.reteoo.RiaPathMemory.initDataDriven(RiaPathMemory.java:35)
> 	at org.drools.core.reteoo.PathMemory.<init>(PathMemory.java:50)
> {node}



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