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

[Tomaz Cerar (JIRA)]

     [ https://issues.jboss.org/browse/WFLY-9680?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tomaz Cerar reassigned WFLY-9680:
---------------------------------

    Assignee: Stuart Douglas


> 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: 10.1.0.Final, 11.0.0.Final
>            Reporter: Daniel Bildhauer
>            Assignee: Stuart Douglas
>         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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