Arjan Tijms created OWB-893:
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Summary: OpenWebBeans 1.2.1 fails when injecting generic value
holder
Key: OWB-893
URL: https://issues.apache.org/jira/browse/OWB-893
Project: OpenWebBeans
Issue Type: Bug
Components: Injection and Lookup
Affects Versions: 1.2.1
Reporter: Arjan Tijms
In OmniFaces we're using a producer method with the following signature:
{code}
@Produces
@Param
public <V> ParamValue<V> produce(InjectionPoint injectionPoint)
{code}
Injection then takes place into a bean as follows:
{code}
@Inject @Param
private ParamValue<String> text1;
{code}
{{@Param}} is a qualifier with only non-binding attributes.
See
[RequestParameterProducer|https://code.google.com/p/omnifaces/source/browse/src/org/omnifaces/cdi/param/RequestParameterProducer.java]
and
[Param|https://code.google.com/p/omnifaces/source/browse/src/org/omnifaces/cdi/Param.java]
This works in all versions of Weld that we tested on and in OpenWebBeans 1.1.8
(TomEE 1.5.2.). Unfortunately it does not work with OpenWebBeans 1.2.1-SNAPSHOT
(TomEE 1.6.0-SNAPSHOT).
The problem seems to be that 1.2.1 has added an additional check in
{{org.apache.webbeans.util.GenericsUtil.satisfiesDependency}} that wasn't there
before:
{code}
return ClassUtil.isSame(injectionPointRawType, beanRawType)?
isAssignableFrom(injectionPointType, beanType): false;
{code}
The problem is with {{isAssignableFrom}}, because the producer is always seen
as producing a {{ParamValue<Object}}. The actual values at the point of
evaluation with the above given injection example where:
{noformat}
injectionPoint = ParamValue<class java.lang.String>
beanType = ParamValue<class java.lang.Object>
{noformat}
Those are not directly assignable so the injection fails.
Is OmniFaces doing something wrong here, is this check to strict, or should the
producer type not be seen as {{ParamValue<Object>}}?
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