Hello

A customer of mine sent in a test application with the following structure:

A war file inside ear
Two jar files inside ear/lib
One jar file inside ear/war/WEB-INF/lib

There is a class inside one of the ear/lib jar files which @Injects a bean from the other ear/lib jar file

And there is a class inside the ear/war/WEB-INF/lib jar file that @Specializes the bean inside an ear/lib jar file

(You can see the application at was_bugs/was_bug22 at master thikade/was_bugs GitHub )

Attempting to run this application on Weld results in an Unsatisfied Resolution Exception. When I remove the jar containing the @Specializes bean the application works correctly.


My first thought was that this application should not work, because the war file and it's internal jar would have a second classloader that would be invisible to the application classloader. However the customer attested, and I confirmed that this application works fine on OpenWebBeans.

I do not think this is an integration issue, because I tested this on Wildfly and got the same error.


So it seems that Weld throws an Unsatisfied Resolution Exception if @specializes exists in a class that is loaded by a classloader which is not visible .

What do you think is the correct behaviour is in this instance? From a classloading perspective a class inside ear/lib should not be able to see a class inside ear/war; but on the other hand the entire purpose of a @Specializes bean is that you drop it into your application and it replaces the original bean. It feels appropriate that you can drop in a war file containing the @Specializes bean and it just works without you having to do anything extra.

Best regards
Benjamin
 


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