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From "Marshall Schor (JIRA)" <...@uima.apache.org>
Subject [jira] [Commented] (UIMA-5869) The JCas getView method throws CasRuntimeException not CasException
Date Fri, 21 Sep 2018 13:11:00 GMT

    [ https://issues.apache.org/jira/browse/UIMA-5869?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16623592#comment-16623592
] 

Marshall Schor commented on UIMA-5869:
--------------------------------------

I'm not following the arguments pro/con. 

To be clear, an "unchecked" exception is one like CasRuntimeException.  These do not require
that the caller handle the exception.

A "checked" exception requires that the call handle the exception or declare in the method
header a "throws" clause, which would, in turn require the caller of this to handle the exception,
recursively.

Changing this from an unchecked exception to a checked exception would very likely cause compile
errors for code that doesn't currently have handlers for this condition, which is the opposite
conclusion from the description above (but maybe I've misunderstood something?).

 

> The JCas getView method throws CasRuntimeException not CasException
> -------------------------------------------------------------------
>
>                 Key: UIMA-5869
>                 URL: https://issues.apache.org/jira/browse/UIMA-5869
>             Project: UIMA
>          Issue Type: Bug
>          Components: Core Java Framework
>    Affects Versions: 2.10.2SDK, 3.0.0SDK
>            Reporter: Burn Lewis
>            Priority: Minor
>
> Code that uses JCas getView expects CasException to be thrown if a view is missing, but
instead the underlying CAS.getView method throws CasRuntimeException.
> Either the code or the Javadocs should be fixed.  Since a missing view is not uncommon,
throwing an unchecked exception is not very useful.  Making the framework code match the
Javadocs should have tminimal impact on existing user code.
>  



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