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NullPointerException When trying to Get Session Scoped Bean data in another ManagedBean

sofianeJul 28 2013 — edited Jul 30 2013

hello

i wont to access to some data in my session scoped bean from a request bean so when i try to get this data all i get is 

com.sun.faces.mgbean.ManagedBeanCreationException: An error occurred performing resource injection
on managed bean
«discussionlaoder»


in the end of the exception there is

Caused by: java.lang.NullPointerException at Hiber.discussionlaoder.init(discussionlaoder.java:35)



this is my code:

1-the request scoped bean

@ManagedBean
@RequestScoped
public class discussionlaoder {

  private MyadmninHelper halper;

@ManagedProperty(value="#{serviceBean}")
     private ServicesBean  serviceBean;
    @PostConstruct
    public void init() {
      halper=getServiceBean().getHalper();  // line 35

    }

//seter and geter code

}

2-the sesions scoped bean

@ManagedBean (eager=true)
@SessionScoped
public class ServicesBean {

      
  
    private MyadmninHelper halper;

//seter and geter code

}

am using glassfish server 3.1

thank's for help

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Added on Jul 28 2013
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