Unhelpful stack trace when tag value binding returns wrong type.
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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
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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