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https://issues.apache.org/jira/browse/TILES-511?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Antonio Petrelli closed TILES-511.
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Fix Version/s: (was: 2.2.x)
Resolution: Not A Problem
Solved here:
http://tiles.markmail.org/message/o3dybr642jajqryk?q=+list:org%2Eapache%2Etiles%2Eusers&page=1
> InsertAttributeTag throws ClassCastException on attribute added through
> ViewPreparer
> ------------------------------------------------------------------------------------
>
> Key: TILES-511
> URL: https://issues.apache.org/jira/browse/TILES-511
> Project: Tiles
> Issue Type: Bug
> Components: tiles-jsp (jsp support)
> Affects Versions: 2.2.1
> Environment: Tomcat 6.0.24 on Ubuntu
> Reporter: James Cockrill
>
> I am adding attributes to the AttributeContext with a ViewPreparer as per the
> example at:
> http://tiles.apache.org/framework/tutorial/advanced/preparer.html
> The line of interest is:
> attributeContext.putAttribute(
> "my.attribute.name",
> new Attribute("This is the value added by the ViewPreparer"));
> I am then attempting to access the attribute in the JSP, using the
> tiles:insertAttribute tag like so:
> <tiles:insertAttribute value="my.attribute.name" flush="true" />
> When I attempt to render the page, I receive a stack trace with the following
> root cause:
> java.lang.ClassCastException: java.lang.String cannot be cast to
> org.apache.tiles.Attribute
>
> org.apache.tiles.jsp.taglib.InsertAttributeTag.doTag(InsertAttributeTag.java:306)
> The full stack itself is rather hard to retrieve as the system is on a
> separate network. A simple test-case would be to create a simple project with
> Tiles 2.2.1, a ViewPreparer that inserts an attribute with a String value (as
> above) and a JSP that tries to insert that attribute.
> The offending line of code seems to be the call to model.start in the doTag,
> where the 'value' member is cast to an Attribute. It seems that there doesn't
> appear to be any attempt to resolve the 'value' member against the
> attribute-names in the attribute context.
> Strangely, if I use "<tiles:useAttribute id="temp" name="my.attribute.name"
> /> ${temp}" i get the content of the variable just fine.
> The issue is either to do with the code being broken (erroneous cast?) or the
> example being incorrect.
> Thanks
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