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 :
posted 4 years ago
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.