[weld-issues] [JBoss JIRA] (WELD-964) Unsatisfied dependency exception should differentiate between "class is not in classpath", "class is in classpath but not managed bean" and "class is in classpath and managed but not like that"

Unsatisfied dependency exception should differentiate between "class is not in classpath", "class is in classpath but not managed bean" and "class is in classpath and managed but not like that" ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Key: WELD-964 URL: https://issues.jboss.org/browse/WELD-964 Project: Weld Issue Type: Feature Request Reporter: Geoffrey De Smet Having an "unsatisfied dependency" can have several causes: - The jar is not in the classpath - The jar is in the classpath, but the beans.xml is not being picked up (for whatever reason, such as problems with WEB-INF/beans.xml on some containers) - The jar is in the classpath, the beans.xml is picked up but the qualifiers etc don't match. So, instead of just saying "unsatisfied dependency ...": it should say something like this: - Unsatisfied dependency ... and there is no concrete implementing class in the classpath. - Unsatisfied dependency ... and the concrete implementing class(es) are not loaded as managed beans through a beans.xml. - Unsatisfied dependency ... and none of the managed beans of the same type match. Note: spring's exceptions differentiate between these cases (they explicitly define their appContext.xml set, so case 2 is impossible and case 1 throws a "app context file not found" exception.