Unable to build EntityManagerFactory?

I asked google and one of its suggestions looked promising: "if you define your persistence unit with the JTA transaction type someone answered here you need also to define your datasource inside the jta-data-source attribute.

I asked google and one of its suggestions looked promising: "if you define your persistence unit with the JTA transaction type,", someone answered here, "you need also to define your datasource inside the jta-data-source attribute. " Try adding this to your ApplicationContext. Xml and the following to element in persistence.

Xml: your-jndi-name.

I am not using the jndi connection.. I am giving the connection configuration settings in the ApplicationContext. Xml as dataSource – Rohan Jan 21 at 12:56.

The main problem was that the entites was not generated properly. So at the end of the stacktrace it was giving this error Caused by: org.hibernate. MappingException: property mapping has wrong number of columns: com......date type: object once the entity was generated correctly the problem was solved.

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