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DAO can't get call and get Nullpointer exception?

Nakataa Kokuyo
Ranch Hand

Joined: Jul 24, 2011
Posts: 187
Good day,

I'm new in JPA and i have below class intend to save a record, it is running @onetoone relationship between student and contact class, When i do a test run and i got nullpointerexception error on line 13 under Studentanager.class, appreciated your enlightenment.

P/S : Suspect missing out some implementation, hope someone can guide me out here, caused the Entity Manager always Null.

StudentManager class :


StudentDAOImpl class :





Persistence.xml reside in META-INF folder



My Test case :
Nakataa Kokuyo
Ranch Hand

Joined: Jul 24, 2011
Posts: 187
Just in case in future someone having similar issue, this can be resolve by using ClassPathXmlApplicationContext if you do not using jUnit for the testing.

 
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subject: DAO can't get call and get Nullpointer exception?