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Hi all,
We're getting a ClassCastException from our simple screen that lets the
users upload files to the server. We're using the Form xml to render
the screen:
<form name="UploadFiles" type="upload" target="uploadFiles"
title="Upload Files">
<field name="fileContent" title="Select File"><file/></field>
<field.... other fields>
<field name="submitButton" title="Upload Start"
widget-style="smallSubmit"><submit button-type="button"/></field>
</form>
We're reusing opentaps' main-financial-decorator as the screen layoug.
The controller.xml mapping:
<request-map uri="uploadFiles">
<security https="true" auth="true"/>
<event type="service" invoke="uploadFiles" />
<response name="success" type="view" value="uploadFiles"/>
<response name="error" type="view" value="uploadFiles"/>
</request-map>
inside the uploadFiles service, towards the end of the method, we have this:
if (errMessage.size() > 0) {
results.put(ModelService.ERROR_MESSAGE_LIST, errMessage);
results.put(ModelService.RESPONSE_MESSAGE,
ModelService.RESPOND_ERROR);
}
return results;
So far, it's all pretty standard stuff. However, when errMessage is not
empty, the error messages will get rendered, and here's the exception
thrown:
java.lang.Exception: Error rendering screen
[component://lulu-financials/widget/lulu-financials/screens/common/CommonScreens.xml#main-financials-decorator]:
java.lang.ClassCastException
org.ofbiz.entity.transaction.TransactionUtil.setRollbackOnly(TransactionUtil.java:287)
org.ofbiz.entity.transaction.TransactionUtil.rollback(TransactionUtil.java:237)
org.ofbiz.widget.screen.ModelScreen.renderScreenString(ModelScreen.java:150)
org.ofbiz.widget.screen.ModelScreenWidget$DecoratorScreen.renderWidgetString(ModelScreenWidget.java:500)
org.ofbiz.widget.screen.ModelScreenWidget.renderSubWidgetsString(ModelScreenWidget.java:161)
org.ofbiz.widget.screen.ModelScreenWidget$Section.renderWidgetString(ModelScreenWidget.java:254)
If we comment out the line that sets the ModelService.ERROR_MESSAGE_LIST
in result, then we don't get the exception. Now, if we leave the line
alone, but didn't upload a file (fill the other fields, and hit submit),
we don't get the exception here. I hope this make sense. Basically, we
get this ClassCastException if we uploaded a file and set
ModelService.ERROR_MESSAGE_LIST in the result.
We're using opentaps 0.9.3 right now. If you have any ideas, we'd be
ecstatic to hear it. I know there's probably not enough information in
this post to diagnose the issue. If that's the case, I can post more
part of the code here.
thanks,
wan
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