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https://issues.apache.org/jira/browse/TAP5-571?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Igor Drobiazko reassigned TAP5-571:
-----------------------------------
Assignee: Igor Drobiazko
> Misplaced <t:parameter> results in an inscrutable exception
> -----------------------------------------------------------
>
> Key: TAP5-571
> URL: https://issues.apache.org/jira/browse/TAP5-571
> Project: Tapestry 5
> Issue Type: Bug
> Components: tapestry-core
> Affects Versions: 5.1.0.0
> Reporter: Igor Drobiazko
> Assignee: Igor Drobiazko
>
> If <t:parameter> is used not inside a component, a inscrutable exception
> occurs. The message of the exception doesn't tell at all what the reason was.
> PageLoaderProcessor should catch the IllegalStateException inside the method
> parameter(ParameterToken) and throw TapestryException containing the location
> of the current token. This will provide a reasonable exception report.
> java.lang.IllegalStateException: Stack is empty.
> at org.apache.tapestry5.ioc.util.Stack.checkIfEmpty(Stack.java:119)
> at org.apache.tapestry5.ioc.util.Stack.peek(Stack.java:131)
> at
> org.apache.tapestry5.internal.services.PageLoaderProcessor.parameter(PageLoaderProcessor.java:594)
> at
> org.apache.tapestry5.internal.services.PageLoaderProcessor.loadTemplateForComponent(PageLoaderProcessor.java:519)
> at
> org.apache.tapestry5.internal.services.PageLoaderProcessor.workComponentQueue(PageLoaderProcessor.java:834)
> at
> org.apache.tapestry5.internal.services.PageLoaderProcessor.loadPage(PageLoaderProcessor.java:392)
> at
> org.apache.tapestry5.internal.services.PageLoaderImpl.loadPage(PageLoaderImpl.java:59)
> at $PageLoader_11ff4e54e7f.loadPage($PageLoader_11ff4e54e7f.java)
> at
> org.apache.tapestry5.internal.services.PagePoolCache.checkout(PagePoolCache.java:210)
> at
> org.apache.tapestry5.internal.services.PagePoolImpl.checkout(PagePoolImpl.java:99)
> To reproduce the problem create the following page:
> <html xml:space="default"
> xmlns:t="http://tapestry.apache.org/schema/tapestry_5_0_0.xsd";>
> <body>
> <t:unless test="some condition">
> Foo
> </t:unless>
> <t:parameter name="else">
> Bar
> </t:parameter>
> </body>
> </html>
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