How can I access EJB 2.1 session from EJB 3 session in JBoss 4.2.1.GA?
The EJB 3 sessions and EJB 2.1 session are deployed in separate EJB jar files,
but they are in the same EAR file, so they are part of the same J2EE
application.
I have tried the following methods:
Injecting EJB 2.1 home using EJB annotation, simply like this:
@EJB
private foo.bar.SomeLocalHome someHome;
results in the error:
java.lang.RuntimeException: could not resolve global JNDI name for @EJB for
container WhatEver: reference class: foo.bar.SomeLocalHome ejbLink: not used
by any EJBs
Which is not true, because that LocalHome class is used by a EJB 2.1 session
bean.
Injecting local interface using EJB annotation:
@EJB
private foo.bar.SomeLocal some;
results in the same error.
Injections with beanName set:
@EJB(beanName = "Some")
private foo.bar.SomeLocalHome someHome;
result in error
java.lang.RuntimeException: Failed to populate ENC:
env/foo.bar.WhatEver/someHome global jndi name was null
Adding local reference to ejb-jar.xml, like so:
<ejb-name>WhatEver</ejb-name>
<ejb-local-ref>
<ejb-ref-name>Some</ejb-ref-name>
<ejb-ref-type>Session</ejb-ref-type>
<local-home>foo.bar.SomeLocalHome</local-home>
<ejb-link>Some</ejb-link>
</ejb-local-ref>
and injecting like so:
@EJB(name = "Some")
private SomeLocalHome someHome;
fails because JBoss complains that "IGNORING DEPENDENCY ... too little
information".
Creating the local ref like so
<ejb-name>WhatEver</ejb-name>
<ejb-local-ref>
<ejb-ref-name>Some</ejb-ref-name>
<ejb-ref-type>Session</ejb-ref-type>
<local-home>foo.bar.SomeLocalHome</local-home>
foo.bar.SomeLocalHome
<ejb-link>Some</ejb-link>
</ejb-local-ref>
fails because
15:25:51,749 WARN [EJBHandler] IGNORING DEPENDENCY: unable to find
<ejb-local-ref> of interface foo.bar.SomeLocal and ejbLink of Some in
ejb-jar.xml of WhatEver it might not be deployed yet
Looking at the code (I think I found the correct place), the local-ref handling
code simply ignores local-home, and seems to search for EJB that implements the
local interface, which is daft when I want to link to EJB 2.1.
Maybe injection without JNDI name (the first attempt above) fails for a similar
reason?
I'm currently looking up the local home interface manually (new
InitialContext().lookup("Some")), and it works, but this is not very nice.
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