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https://issues.apache.org/jira/browse/UIMA-3087?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jerry Cwiklik closed UIMA-3087.
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Resolution: Fixed
> Fix NPE in Ducc Agent
> ----------------------
>
> Key: UIMA-3087
> URL: https://issues.apache.org/jira/browse/UIMA-3087
> Project: UIMA
> Issue Type: Bug
> Components: DUCC
> Affects Versions: 1.0-Ducc
> Reporter: Jerry Cwiklik
> Assignee: Jerry Cwiklik
> Fix For: 1.0-Ducc
>
>
> There is NPE occuring in the Agent's DuccGarbageStatsCollector. The collector
> is meant to collect GC information via JMX. This collector is periodically
> running under the control of Camel route which starts immediately after the
> process is launched. It seems like there is a race where the route is stating
> ahead of the process. Modify code to start the route only when the process
> reports back to the agent. For some reason the route is currently starting in
> CommandExecutor.postExecStep() and apparently a reference to a Process object
> is not yet valid causing the NPE
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