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Cannot open connection
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org.hibernate.exception.GenericJDBCException: Cannot open connection	at org.hibernate.exception.SQLStateConverter.handledNonSpecificException(SQLStateConverter.java:140)	at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:128)	at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66)	at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:52)	at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:449)	at org.hibernate.jdbc.ConnectionManager.getConnection(ConnectionManager.java:167)	at org.hibernate.jdbc.JDBCContext.connection(JDBCContext.java:160)	at org.hibernate.transaction.JDBCTransaction.begin(JDBCTransaction.java:81)	at org.hibernate.impl.SessionImpl.beginTransaction(SessionImpl.java:1473)	at org.springframework.orm.hibernate3.HibernateTransactionManager.doBegin(HibernateTransactionManager.java:556)