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EntityManager injection fails in websphere 7.0.0.17 but same works in 7.0.0.0

 
Greenhorn
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I am successfully running an application in websphere 7.0.0.0 but it is failing in websphere 7.0.0.17. I am injecting the entitymanager using @PersistenceContext.


When I try to use entitymanager it is throwing NullPointerException. But the same code runs successfully in Websphere 7.0.0.0.

Please help.
 
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