In JBoss 6 M3 I had a war file with a class like this
@Stateless
class A {
private ClassInExternalDependency b;
}
When I deployed this I got the error which is in the attached file. I found out that this dependency (ClassInExternalDependency) wasn't included in my .war file, so it was my own fault. But the error message tells me nothing about it. So perhaps this error could be reported a little better.