[weld-issues] [JBoss JIRA] Created: (WELD-870) Add injection point information to exception message when injection into observer fails

[Dan Allen (JIRA)]

Add injection point information to exception message when injection into observer fails
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                 Key: WELD-870
                 URL: https://issues.jboss.org/browse/WELD-870
             Project: Weld
          Issue Type: Enhancement
          Components: Events
    Affects Versions: 1.1.0.Final
            Reporter: Dan Allen


Injections that fail when an observer method is invoked are massively hard to track down. Here's the information you get:

org.jboss.weld.exceptions.IllegalArgumentException: WELD-001324 Argument bean must not be null
   at org.jboss.weld.manager.BeanManagerImpl.getReference(BeanManagerImpl.java:714)
   at org.jboss.seam.exception.control.HandlerMethodImpl.notify(HandlerMethodImpl.java:187)
   at org.jboss.seam.exception.control.ExceptionHandlerDispatch.executeHandlers(ExceptionHandlerDispatch.java:128)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
   at java.lang.reflect.Method.invoke(Method.java:616)
   at org.jboss.weld.util.reflection.SecureReflections$13.work(SecureReflections.java:305)
   at org.jboss.weld.util.reflection.SecureReflectionAccess.run(SecureReflectionAccess.java:54)
   at org.jboss.weld.util.reflection.SecureReflectionAccess.runAsInvocation(SecureReflectionAccess.java:163)
   at org.jboss.weld.util.reflection.SecureReflections.invoke(SecureReflections.java:299)
   at org.jboss.weld.introspector.jlr.WeldMethodImpl.invokeOnInstance(WeldMethodImpl.java:188)
   at org.jboss.weld.introspector.ForwardingWeldMethod.invokeOnInstance(ForwardingWeldMethod.java:59)
   at org.jboss.weld.injection.MethodInjectionPoint.invokeOnInstanceWithSpecialValue(MethodInjectionPoint.java:198)
   at org.jboss.weld.event.ObserverMethodImpl.sendEvent(ObserverMethodImpl.java:270)
   at org.jboss.weld.event.ObserverMethodImpl.sendEvent(ObserverMethodImpl.java:253)
   at org.jboss.weld.event.ObserverMethodImpl.notify(ObserverMethodImpl.java:222)
   at org.jboss.weld.manager.BeanManagerImpl.notifyObservers(BeanManagerImpl.java:632)
   at org.jboss.weld.manager.BeanManagerImpl.fireEvent(BeanManagerImpl.java:619)
   at org.jboss.weld.manager.BeanManagerImpl.fireEvent(BeanManagerImpl.java:613)

I expect to see the type and qualifiers at the failing injection point. 

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