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https://issues.apache.org/jira/browse/UIMA-1465?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12736669#action_12736669
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Thilo Goetz commented on UIMA-1465:
-----------------------------------

I create AEs like that all the time, from top-level pear descriptors.  It's 
what the CVD does, for example (unless the datapath is set).  This most 
definitely used to work.


> running a pearSpecifier as a top level component fails with 
> NullPointerException
> --------------------------------------------------------------------------------
>
>                 Key: UIMA-1465
>                 URL: https://issues.apache.org/jira/browse/UIMA-1465
>             Project: UIMA
>          Issue Type: Bug
>          Components: Core Java Framework
>    Affects Versions: 2.2.2
>            Reporter: Marshall Schor
>            Assignee: Marshall Schor
>             Fix For: 2.3
>
>
> This happens when produceAnalysisEngine call is done with no additional 
> parameters, for top level pears.  Our previous testing has always had the 
> pear contained in an aggregrate wrapper, which I think works.

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