[jboss-jira] [JBoss JIRA] (WFLY-9680) EJBs can't inherit a JDK8 default method when default implementation is in a third interface

[Daniel Bildhauer (JIRA)]

Daniel Bildhauer created WFLY-9680:
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             Summary: EJBs can't inherit a JDK8 default method when default implementation is in a third interface
                 Key: WFLY-9680
                 URL: https://issues.jboss.org/browse/WFLY-9680
             Project: WildFly
          Issue Type: Bug
          Components: EJB
    Affects Versions: 11.0.0.Final, 10.1.0.Final
            Reporter: Daniel Bildhauer
         Attachments: ejb-in-ear.zip, wildfly-ejb-in-ear-ear.ear

Given the following class/interface inheritance structure, the interface method doMagic could not be called from a remote view, even if there is a default implementation as given in the mixin interface. A local call works, but the remote call fails with a message like
{code}
org.jboss.invocation.CannotProceedException: INV000002: Invocation cannot proceed (end of interceptor chain has been hit)
{code}

Example code:
{code}
@Remote
interface MyEJBInterface {
   void doMagic();
}

interface MyEJBMixin extends MyEJBInterface {
   default void doMagic() { .... }
}

@Stateless
class MyEJBBean extends MyEJBMixin {
}

{code}

The problem is inside the fix for WFLY-4354 bug, which checks only for the default method implementation in the interface declaring the method the first time but not in other interfaces. 
A example is attached and I will submitt a pull request with a fix. 



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