[ 
http://issues.apache.org/jira/browse/MYFACES-990?page=comments#action_12361446 
] 

Steve Peterson commented on MYFACES-990:
----------------------------------------

The new message looks like this:

ERROR 14:57:45 [[jsp]] Servlet.service() for servlet jsp threw exception
javax.faces.el.EvaluationException: Evaluating disabled for 
fixedBarcodeNumberLength; expected type java.lang.Boolean but expression 
evaluated to java.lang.String
        at 
javax.faces.component.html._ComponentUtils.getTypedValue(_ComponentUtils.java:67)
        at 
javax.faces.component.html.HtmlInputText.isDisabled(HtmlInputText.java:116)
        at 
org.apache.myfaces.renderkit.html.HtmlTextRendererBase.isDisabled(HtmlTextRendererBase.java:157)
        at 
org.apache.myfaces.renderkit.html.ext.HtmlTextRenderer.isDisabled(HtmlTextRenderer.java:45)
        at 
org.apache.myfaces.renderkit.html.HtmlTextRendererBase.renderInput(HtmlTextRendererBase.java:144)

> Unhelpful stack trace when tag value binding returns wrong type.
> ----------------------------------------------------------------
>
>          Key: MYFACES-990
>          URL: http://issues.apache.org/jira/browse/MYFACES-990
>      Project: MyFaces
>         Type: Improvement
>   Components: Implementation
>     Versions: 1.1.1
>     Reporter: Steve Peterson
>     Priority: Minor
>  Attachments: typed-value-binding.patch
>
> In the implementation of each UIComponent, the canonical logic for retrieving 
> a non-String property is to cast the result
> of the valueBinding.getValue() method to the expected type.
>     public boolean isItemDisabled()
>     {
>         if (_itemDisabled != null) return _itemDisabled.booleanValue();
>         ValueBinding vb = getValueBinding("itemDisabled");
>         Boolean v = vb != null ? (Boolean)vb.getValue(getFacesContext()) : 
> null;
>         return v != null ? v.booleanValue() : DEFAULT_ITEMDISABLED;
>     }
> Yields an obscure stack trace that doesn't yield the ID of the component or 
> the property that is being referenced:
> ERROR 14:45:28 [[jsp]] Servlet.service() for servlet jsp threw exception
> java.lang.ClassCastException: java.lang.String
>         at 
> javax.faces.component.html.HtmlInputText.isDisabled(HtmlInputText.java:117)
>         at 
> org.apache.myfaces.renderkit.html.HtmlTextRendererBase.isDisabled(HtmlTextRendererBase.java:157)
>         at 
> org.apache.myfaces.renderkit.html.ext.HtmlTextRenderer.isDisabled(HtmlTextRenderer.java:45)
>         at 
> org.apache.myfaces.renderkit.html.HtmlTextRendererBase.renderInput(HtmlTextRendererBase.java:144)
>         at 
> org.apache.myfaces.renderkit.html.HtmlTextRendererBase.encodeEnd(HtmlTextRendererBase.java:50)
>         at 
> org.apache.myfaces.renderkit.html.ext.HtmlTextRenderer.renderNormal(HtmlTextRenderer.java:72)
>         at 
> org.apache.myfaces.renderkit.html.ext.HtmlTextRenderer.encodeEnd(HtmlTextRenderer.java:58)

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