[jboss-jira] [JBoss JIRA] (WFLY-11940) [GSS](7.2.z) Default Value of local-receiver-pass-by-value in jboss-ejb-client Descriptor is Not Respected

[Brad Maxwell (Jira)]

Brad Maxwell created WFLY-11940:
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             Summary: [GSS](7.2.z) Default Value of local-receiver-pass-by-value in jboss-ejb-client Descriptor is Not Respected
                 Key: WFLY-11940
                 URL: https://issues.jboss.org/browse/WFLY-11940
             Project: WildFly
          Issue Type: Bug
          Components: EE, EJB
    Affects Versions: 11.0.0.Final, 12.0.0.Final, 13.0.0.Final
            Reporter: Brad Maxwell
            Assignee: Bartosz Baranowski
             Fix For: 16.0.0.Beta1, 16.0.0.Final
         Attachments: TestWAR.war

The jboss-ejb-client.xml deployment descriptor file can be used to configure the pass semantics of the local EJB receiver using the local-receiver-pass-by-value attribute.

As per the EJB spec, the default behaviour should be to pass by value, and this is appropriately reflected in the jboss-ejb-client XSD.  As of Wildfly 11, the *omission* of the local-receiver-pass-by-value attribute in a jboss-ejb-client deployment descriptor actually results in remote EJB parameters and the return value being passed by reference as opposed to the documented default of being passed by value.

It appears that this bug is a result of changes made for WFLY-5403.  The root cause is that the EJBClientDescriptorMetaDataProcessor.java class only uses the pass-by-value receiver if the local-receiver-pass-by-value attribute is Boolean.TRUE (line 177 in 13.0.0.Final), but EJBClientDescriptor10Parser.java defaults the value to null if it is not included in the jboss-ejb-client.xml (line 132 in 13.0.0.Final).  The old and working behaviour was to fallback to the value configured at the ejb subsystem level if the jboss-ejb-client.xml excluded the attribute.



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