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https://issues.apache.org/jira/browse/UIMA-4618?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15378323#comment-15378323
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Peter Klügl commented on UIMA-4618:
-----------------------------------

Last time this happened, there was a subtype of annotation defining a string 
feature named "type".

> jcasgen maven plugin reports only NPE for reserved feature name
> ---------------------------------------------------------------
>
>                 Key: UIMA-4618
>                 URL: https://issues.apache.org/jira/browse/UIMA-4618
>             Project: UIMA
>          Issue Type: Improvement
>          Components: Core Java Framework, jcasgen-maven-plugin
>    Affects Versions: 2.8.1SDK
>            Reporter: Peter Klügl
>            Priority: Minor
>             Fix For: 2.8.2SDK
>
>
> When the maven plugin is applied on a type system that contains a type that 
> sepcifies a feature with a reserved name, e.g., type or address, then only an 
> NPE is thrown without any indicator what went wrong (with the default logging 
> settings). Some error message/logging in the default use case could save some 
> time searching for the problem.



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