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https://issues.apache.org/jira/browse/MSHARED-193?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17733873#comment-17733873
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Herve Boutemy commented on MSHARED-193:
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bq. A renderer (view in MVC) is the last layer, there is no logic, no data 
retrieval. Data (model) must be fetched and prepared by the controller, here 
the report and passed to the view (renderer) and the view's sole purpose is to 
print it out.

yes, I agree
but "it should" does not mean that there is never a small IO call, like reading 
a file that was prepared previously
then yes, in general IO should not happen, but it happens sometimes and is a 
pain when it arrives

that's why adding a MavenReportingException is IMHO a good thing (while adding 
the same to canGenerate() in MSHARED-1032), to make maven-reporting-api easier 
to use when something unexpected happens (and avoid stupid unchecked exceptions)

> No checked exceptions for rendering
> -----------------------------------
>
>                 Key: MSHARED-193
>                 URL: https://issues.apache.org/jira/browse/MSHARED-193
>             Project: Maven Shared Components
>          Issue Type: Improvement
>          Components: maven-reporting-api, maven-reporting-impl
>    Affects Versions: maven-reporting-impl-2.1, maven-reporting-api-3.0
>            Reporter: Benson Margulies
>            Priority: Major
>              Labels: doxia-2.0.0-stack
>
> It seems unfortunate that 
> [org.apache.maven.reporting.MavenReportRenderer.render()|https://maven.apache.org/shared/maven-reporting-api/apidocs/org/apache/maven/reporting/MavenReportRenderer.html]
>  does not throw MavenReportingException. Thus, even though the execute method 
> for a report throws that exception, rendering problems cannot.
> Obviously, a change to this would ramify. Would there be any chance of 
> acceptance for a patch that added this 'throws'? Alternatively, how about an 
> unchecked cousin of MavenReportingException?



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