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https://issues.apache.org/jira/browse/UIMA-1727?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Marshall Schor updated UIMA-1727:
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Fix Version/s: 2.3AS
> CPM doesnt validate registered CallbackListener references
> -----------------------------------------------------------
>
> Key: UIMA-1727
> URL: https://issues.apache.org/jira/browse/UIMA-1727
> Project: UIMA
> Issue Type: Bug
> Components: Collection Processing
> Reporter: Jerry Cwiklik
> Assignee: Jerry Cwiklik
> Fix For: 2.3AS
>
>
> The CPM uses a list of registered listeners to notify an application of
> certain events. The application registers listeners with the CPM before it
> starts the run. Apparently, the CPM doesnt validate a listener reference
> provided by the application and blindly adds it a list. If the reference is
> null, the NPE is thrown when trying to send notifications. Fix the code to
> validate listener reference to prevent adding null references.
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