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https://issues.apache.org/jira/browse/UIMA-2668?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jerry Cwiklik closed UIMA-2668.
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Resolution: Fixed
Changed CAS accounting to prevent NPE. A child CAS produced in an inner CM
aggregate was assigned a wrong parent before being sent to a collocated client.
As a consequence, the uima-as decremented the number of active child CASes on a
wrong CAS. This in turn, allowed for such CAS to be returned to a client
prematurely with child CASes still in play.
> Fix NullPointerException in UIMA-AS aggregate
> ----------------------------------------------
>
> Key: UIMA-2668
> URL: https://issues.apache.org/jira/browse/UIMA-2668
> Project: UIMA
> Issue Type: Bug
> Components: Async Scaleout
> Affects Versions: 2.4.0AS
> Reporter: Jerry Cwiklik
> Assignee: Jerry Cwiklik
> Fix For: 2.4.1AS
>
>
> When running a complex uima-as aggregate with inner async aggregates with CMs
> the uima-as throws NPE. This is due to a bug in an internal CAS accounting
> which determines when a CAS can be returned back to a client.
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