[ https://jira.codehaus.org/browse/CONTINUUM-2741?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=364095#comment-364095 ] 

Brent N Atkinson commented on CONTINUUM-2741:
---------------------------------------------

The root cause is that tool uses {{DefaultArtifactResolver}} to resolve the jars it needs, and the resolver creates a thread pool with non-daemon threads which keep the JVM alive after the main thread exits. After I was able to pinpoint it, I was able to find a corresponding issue MNG-4738.

> Data export tool fails to halt
> ------------------------------
>
>                 Key: CONTINUUM-2741
>                 URL: https://jira.codehaus.org/browse/CONTINUUM-2741
>             Project: Continuum
>          Issue Type: Bug
>    Affects Versions: 1.5.0
>            Reporter: Brent N Atkinson
>
> Originally from CONTINUUM-2740, when running the data management it silently hangs. It appears the problem may be a thread pool with non-daemon threads being active after the main thread exits.



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