TagValueExpression.getType() returns null if the property in the managed bean
is null and the expression points to a facelets composite component attribute
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Key: MYFACES-2552
URL: https://issues.apache.org/jira/browse/MYFACES-2552
Project: MyFaces Core
Issue Type: Bug
Components: JSR-314
Affects Versions: 2.0.0-beta-2
Reporter: Jakob Korherr
Assignee: Jakob Korherr
if you have a facelets composite component with an attribute "test" that points
to a property in a managed bean (e.g. #{myBean.property}) which is currently
null and you refer to that attribute in the implementation via #{cc.attrs.test}
you can get the current value (null) or set a new value but you cannot get the
type of the property (e.g. String[]). However if the property in the managed
bean is non-null you can get the type.
For example:
<cc:interface name="mycomponent">
<cc:attribute name="test" required="true"/>
</cc:interface>
<cc:implementation>
<h:selectManyListbox value="#{cc.attrs.test}">
<f:selectItems value="#{some select items}"/>
</h:selectManyListbox>
</cc:implementation>
--> calling #{cc.attrs.test}.getType() will fail if #{cc.attrs.test} resolves
to null, but will work if #{cc.attrs.test} resolves to some valid value.
This currently results in a NullPointerException in
_SharedRendererUtils.getConvertedUISelectManyValue().
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