[weld-dev] weld-802

Ales Justin ales.justin at gmail.com
Mon Nov 21 08:21:13 EST 2011


> With this just remember that there can be >1 WeldClass per real class!

Sure, but I think we shouldn't wrap existing WeldClass impls -- else we end-up with dups.
(unless we then properly impl equals/hash, which is a pita in this case ...)

I've added this to ClassTransformer:

    public <T> WeldClass<T> loadClass(final AnnotatedType<T> clazz) {
        // don't wrap existing weld class, dup instances!
       if (clazz instanceof WeldClass) {
            return (WeldClass<T>) clazz;
        } else if (clazz instanceof ForwardingAnnotatedType && ((ForwardingAnnotatedType) clazz).delegate() instanceof WeldClass) {
            ForwardingAnnotatedType fat = (ForwardingAnnotatedType) clazz;
            return (WeldClass<T>) fat.delegate();
        } else {
            return (WeldClass<T>) annotatedTypes.get(clazz);
        }
    }


> 
>> "Bar extends Foo"
>> 
>> The problem is that both Bar and Foo are added as AnnotatedType against ClassTransformer,
>> and eventually deployed as such.
>> 
>> But WeldClassImpl::superclass is looked-up against ClassTransformer::classes --> diff WC_Foo instances
>> 
>>> ClassTransformer
>>> 
>>>    private final ConcurrentMap<TypeHolder<?>, WeldClass<?>> classes;
>>>    private final ConcurrentMap<AnnotatedType<?>, WeldClass<?>> annotatedTypes;
>>> 
>>> ... and no equals/hash impl on WeldClassImpl ...
>>> 
>>> 
>>>> WELD-802 is due to WeldClassImpl not being the same for same class:
>>>> 
>>>> 	• clazz = {java.lang.Class at 5703}"class org.jboss.weld.tests.specialization.weld802.Foo"
>>>> 	• weldClass = {org.jboss.weld.introspector.jlr.WeldClassImpl at 5687}"public at RequestScoped class org.jboss.weld.tests.specialization.weld802.Foo" 
>>>> 
>>>> --
>>>> 
>>>> 	• key: org.jboss.weld.introspector.jlr.WeldClassImpl = {org.jboss.weld.introspector.jlr.WeldClassImpl at 5709}"public at RequestScoped class org.jboss.weld.tests.specialization.weld802.Foo"
>>>> 	• value: org.jboss.weld.bean.ManagedBean = {org.jboss.weld.bean.ManagedBean at 5961}"Managed Bean [class org.jboss.weld.tests.specialization.weld802.Foo] with qualifiers [@Any @Default]" 
>>>> 
>>>> ... investigating further ...
>>>> 
>>> 
>> 
>> _______________________________________________
>> weld-dev mailing list
>> weld-dev at lists.jboss.org
>> https://lists.jboss.org/mailman/listinfo/weld-dev
> 

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