[cdi-dev] Inconsistency in the spec regarding remote EJBs

Martin Kouba mkouba at redhat.com
Thu Jul 16 10:24:09 EDT 2015

Dne 16.7.2015 v 15:25 Antoine Sabot-Durand napsal(a):
> Hi guys,
> Bill Shanon, just pointed me to this test in TCK:
> https://github.com/cdi-spec/cdi-tck/blob/1.2/impl/src/main/java/org/jboss/cdi/tck/tests/event/observer/resolve/enterprise/ResolveEnterpriseEventObserverTest.java
> It tests the following assertion:
> "If the bean is a session bean, the observer method must be either a
> business method of the EJB or a static method of the bean class.”
> The EJB containing the observers for the test is:
> https://github.com/cdi-spec/cdi-tck/blob/1.2/impl/src/main/java/org/jboss/cdi/tck/tests/event/observer/resolve/enterprise/Spitz.java
> The EJB contains one business method coming from a local interface, one
> from a remote and one static method. the 3 are observers methods
> The test expects that the remote business observer method should be called.
> Here we have an inconsistency IMO. By doing this we are violating rules
> the CDI spec regarding the fact that remote EJBs are not CDI beans.

Not exactly, the CDI spec only states that remote interfaces are not 
included in the set of bean types. In this case, the set of bean types 
includes LocalInterface and java.lang.Object. However, the set of 
business methods includes observeLocal() and observeRemote() (see also 
the EJB spec). And so the test follows the current wording of the spec.

> And we are calling this remote business method passing the event payload by
> reference and not by value which violates EJB specification regarding
> remote EJB.
> I suggest that we change the assertion to:
> If the bean is a session bean, the observer method must be either a
> local business method of the EJB or a static method of the bean class.
> and the TCK accordingly. Any thought ?

Yes, we should fix the spec wording first (create issue, exclude test, 
fix tck, etc.).

> Antoine
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Martin Kouba
Software Engineer
Red Hat, Czech Republic

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