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1. Re: could not dereference object
vitalstrike82 Aug 11, 2006 8:38 AM (in response to vitalstrike82)"vitalstrike82" wrote:
Hi,
I'm using jboss4.0.3. I want to reference my jsp page to EJB but get a "could not dereference object" upon running the jsp with this as it went into the catch exception instead of looking up to the EJB:try { objref = initial.lookup("java:comp/env/ejb/MyMusicCart"); System.out.println("lookup success for ejb/MyMusicCart"); // a reference to the home interface is shareable cartHome = (MusicCartHome)PortableRemoteObject.narrow(objref, MusicCartHome.class); System.out.println("created MusicCartHome object"); } catch (Exception ex) { System.out.println("Unexpected Exception: " +ex.getMessage());
My web.xml
[code
<ejb-ref>
<ejb-ref-name>ejb/MyMusicCart</ejb-ref-name>
<ejb-ref-type>Session</ejb-ref-type>
<home>asg.MusicCartEJB.MusicCartHome</home>
<remote>asg.MusicCartEJB.MusicCart</remote>
<ejb-link>ejb-jar-ic.jar#MusicCartBean</ejb-link>
</ejb-ref> -
2. Re: could not dereference object
peterj Aug 11, 2006 8:48 PM (in response to vitalstrike82)I have never used the syntax you used for the ejb-link node in your web.xml file. In my web.xml file, I always set ejb-link to the same text as ejb-ref-name. So what I am advising might not work exactly as I say.
Try adding a jboss-web.xml file with the following:<jboss-web> <ejb-ref> <ejb-ref-name>ejb/EJBMusic</ejb-ref-name> <jndi-name>ejb/EJBMusic</jndi-name> </ejb-ref> <ejb-ref> <ejb-ref-name>ejb/EJBMusicCart</ejb-ref-name> <jndi-name>ejb/EJBMusicCart</jndi-name> </ejb-ref> </jboss-web>