[jboss-jira] [JBoss JIRA] (AS7-1995) Re-entrant call into SFSB invalidly blocks

[Carlo de Wolf (Commented) (JIRA)]

    [ https://issues.jboss.org/browse/AS7-1995?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12635091#comment-12635091 ] 

Carlo de Wolf commented on AS7-1995:
------------------------------------

http://java.net/projects/ejb-spec/lists/jsr345-experts/archive/2011-10/message/8

Amendment for "The SessionContext Interface": 
{quote}
If a business method is called on such reference from the same session bean that called getBusinessObject method, unless the bean supports reentrant calls, a container will use a different stateless session bean instance either from the pool or will create a new instance to serve the request. For the stateful session beans and singleton session beans the returned reference will be for the same instance, and the bean must support reentrant calls to call a method on it.
{quote}
                
> Re-entrant call into SFSB invalidly blocks
> ------------------------------------------
>
>                 Key: AS7-1995
>                 URL: https://issues.jboss.org/browse/AS7-1995
>             Project: Application Server 7
>          Issue Type: Bug
>          Components: EJB
>         Environment: https://github.com/wolfc/jboss-as/tree/reentrant
>            Reporter: Carlo de Wolf
>            Assignee: Carlo de Wolf
>             Fix For: 7.1.0.CR1
>
>
> Calling a method on the proxy returned by SessionContext.getBusinessObject(Class) can lead to incorrect ConcurrentAccess(Timeout)Exceptions.
> {code}
> @Stateful
> public class ReentrantStatefulBean {
>     @Resource
>     private SessionContext ctx;
>     private Object state;
>     @TransactionAttribute(NEVER)
>     public void callMe() {
>         this.state = new Date().toString();
>         ctx.getBusinessObject(ReentrantStatefulBean.class).check(this.state);
>     }
>     @TransactionAttribute(REQUIRED)
>     public void check(final Object check) {
>         if (this.state != check)
>             throw new IllegalStateException("EJB 3.1 FR 21.2 I'm not being myself today");
>     }
> }
> {code}

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