java - JBAS014360: EJB 3.1 FR 4.3.14.1 concurrent access timeout on org.jboss.invocation.InterceptorContext -

i'm doing migration jboss 7.1 , seam 2.3, having issues jbas014360: ejb 3.1 fr 4.3.14.1 concurrent access timeout on org.jboss.invocation.interceptorcontext

here action class:

@name("myaction") @scope(scopetype.conversation) public class myaction implements java.io.serializable {     @in(create = true)     private myservice myservice;      @in(required = false)     @out(required = true)     private user user;      @in(required = false)     @out(required = false)     private acquisition acquisition;      @begin(join = true)     @create     public void init() {        // more code          acquisition = myservice.getnext(user);     }      public void savehistory() {        myservice.savehistory(acquisition, user);     } } 

and service class.

@stateless @name("myservice") public class myserviceimpl implements myservice {     @in(create = true)     private entitymanager em;      @transactionattribute(transactionattributetype.requires_new)     public acquisition getnext(user user){       // em.createnamedquery(...);       // acquisition.update(user);       // em.flush();       // return acquisition    }     @transactionattribute(transactionattributetype.requires_new)    public acquisition savehistory(acquisition acquisition,user user){      history = createhistoryobject(...);      acquisition.gethistories().add(history);      return acquisition;    } } 

getnext(user user) method called init() block , causes exception.

savehistory(...) method called xhtml page , works expected.

what's wrong init() block? change in ejb 3.1 or in seam 2.3?

can explain this?

i found way work.

if put the

@in(create = true) private entitymanager em; 

in myaction.class , nothing else, works.

still looking explanation of behavior.

any ideas?