org.apache.openjpa.persistence.RollbackException: Listener refused the connection with the following error: ORA-12519, TNS:no appropriate service handler found at > org.apache.openjpa.persistence.EntityManagerImpl.commit(EntityManagerImpl.java:594)

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    • org.apache.openjpa.persistence.RollbackException: Listener refused the connection with the following error: ORA-12519, TNS:no appropriate service handler found at > org.apache.openjpa.persistence.EntityManagerImpl.commit(EntityManagerImpl.java:594) at ms.algo.adapt.test.BeanIODemo.saveToDB(BeanIODemo.java:153) at ms.algo.adapt.test.BeanIODemo.beanIOTest(BeanIODemo.java:127) at ms.algo.adapt.test.BeanIODemo.main(BeanIODemo.java:50)
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