Hi Lincoln,

can you provide a stack trace? I tried reproducing as described but I only see a NPE being thrown from Maven so I assume I am observing something else. What you do should work. Please file a Weld issue.

Btw, is there a reason why you need to "fake" the InjectionPoint?. Since you have a Bean object and a CreationalContext object available in your code you can obtain a contextual reference using the BeanManager.getReference() method without faking the IP.

JH

On 01/11/2013 11:27 PM, Lincoln Baxter, III wrote:
Hey all,

I have a problem with "Faking an injection point," with the current Weld 2 code, seems to be throwing an NPE instead of using the InjectionPoint that I am providing the BeanManager with.

This can be reproduced right now by checking out the forge core repository branch 2.0. Just run, mvn clean install.

https://github.com/forge/core/tree/2.0

The crux of the matter, we have a producer method in a CDI instance A:

@Produces
public static Coverter<?,?> produceRemoteConverter(AddonRegistry registry, InjectionPoint ip)


There are, however, no injection points actually consuming this type/producer method from within CDI instance A. (And adding one would not really help.)

In CDI instance, B, however, we are using the following code, with a reference to the BeanManager from CDI instance A, to get an instance of a Converter:

Bean<R> bean = (Bean<R>) manager.resolve(manager.getBeans(type));
context = manager.createCreationalContext(bean);
Object delegate = manager.getInjectableReference(injectionPoint, context);


We have an InjectionPoint for the Converter type in CDI instance B, and are delegating to container A to get the instance (using an extension.)

However, even though we are passing in our own InjectionPoint(B) into CDI instance A, CDI instance A still tries to look up the InjectionPoint on its internal stack, and throws a NullpointerException.

I think this is a bug, since InjectionPoint is an interface, (but obviously very edge case if so.)

Any help would be appreciated. Otherwise, we have no way to support looking up beans for types which are produced with Producer Methods requiring an injection point (those without work fine, and normal type lookups obviously work fine.)

--
Lincoln Baxter, III
http://ocpsoft.org
"Simpler is better."