[Building Sakai] ClassCastException implementing CourseGradesToSpreadsheetConverter

[Ray Davis]

AFAIK we at UC Berkeley are still successfully exporting Gradebook 
spreadsheets. The Java code and components.xml haven't changed since 
late 2007:
https://source.sakaiproject.org/viewsvn/ucb/ucb-integration-samples/bspace-grade-converter/?root=contrib

I'll attach our current pom.xml to this message in the hope that it will 
help.

Best,
Ray

On 8/16/11 1:54 PM, Gross,Christopher wrote:
> Hello!
>
> We are attempting to create our own implementation of the
> CourseGradesToSpreadsheetConverter interface (gradebook service), however
> we are receiving a ClassCastException when attempting to export course
> grades from the gradebook tool. To ensure this was not a problem in our
> code we set gradebook.coursegrades.converter to
> "org.sakaiproject.gradebooksample.CourseGradesToSpreadsheetConverterSample"
>   in sakai.properties, which is the sample that is included in the
> gradebook tool's source. The result is that both implementations are
> causing the same ClassCastException when a user attempts to export the
> course grades in the gradebook.
>
> This setup is using gradebook 2.8.x and edu-services 1.1.x
>
> A small snippet of the output is below.
>
> I am hoping that someone may see something that I am not or will confirm
> that this is something that needs to be submitted to the JIRA.
>
> Thanks!
>
> ----
>
> 2011-08-16 16:28:05.634 [ERROR]
> org.apache.catalina.core.ContainerBase.[Catalina].[localhost].[/sakai-grade
> book-tool].[sakai.gradebook.tool]:691 - Servlet.service() for servlet
> sakai.gradebook.tool threw exception
> java.lang.ClassCastException:
> org.sakaiproject.gradebooksample.CourseGradesToSpreadsheetConverterSample
> cannot be cast to
> org.sakaiproject.tool.gradebook.CourseGradesToSpreadsheetConverter
> 	at
> org.sakaiproject.tool.gradebook.ui.CourseGradeDetailsBean.getSpreadsheetDat
> a(CourseGradeDetailsBean.java:322)
> 	at
> org.sakaiproject.tool.gradebook.ui.CourseGradeDetailsBean.exportCsv(CourseG
> radeDetailsBean.java:296)
> ...
>
>
> --
>
> Christopher Gross
> University of Florida
>
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