Injections that cause bad casts need better reporting
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Key: TAPESTRY-642
URL: http://issues.apache.org/jira/browse/TAPESTRY-642
Project: Tapestry
Type: Bug
Components: Framework
Versions: 4.0
Reporter: Howard M. Lewis Ship
Assigned to: Howard M. Lewis Ship
When injection code performs a cast and a ClassCastException occurs, it's very
difficult to determine what actually failed.
The exception report provides no details (not an accurate location, and no
additional information).
Unable to instantiate component report/ReportInfo: $BaseComponent_2
component: [EMAIL PROTECTED]/ReportInfo]
location: context:/WEB-INF/report/ReportInfo.page, line 6, column 23
1 <?xml version="1.0"?>
2 <!DOCTYPE page-specification PUBLIC
3 "-//Apache Software Foundation//Tapestry Specification 4.0//EN"
4 "http://jakarta.apache.org/tapestry/dtd/Tapestry_4_0.dtd";>
5
6 <page-specification>
7
8
9 <component id="tallYes" type="Checkbox">
10 <binding name="value" value="tallYes"/>
11 </component>
java.lang.ClassCastException
$BaseComponent_2
Stack Trace:
* $ReportInfo_26.finishLoad($ReportInfo_26.java)
*
org.apache.tapestry.pageload.PageLoader.constructComponent(PageLoader.java:470)
* org.apache.tapestry.pageload.PageLoader.loadPage(PageLoader.java:639)
* $IPageLoader_1064cccc780.loadPage($IPageLoader_1064cccc780.java)
* $IPageLoader_1064cccc781.loadPage($IPageLoader_1064cccc781.java)
* org.apache.tapestry.pageload.PageSource.getPage(PageSource.java:118)
* $IPageSource_1064cccc6eb.getPage($IPageSource_1064cccc6eb.java)
* org.apache.tapestry.engine.RequestCycle.loadPage(RequestCycle.java:265)
* org.apache.tapestry.engine.RequestCycle.getPage(RequestCycle.java:248)
The exception is occuring inside the finishLoad() method of the enhanced class.
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